Imo it is all table dependent.  I believe you are referring to the Aussie Millions tournament as described in Every Hand Revealed, by Gus Hansen.  The thing to keep in mind about Gus is that he is a sicko (so don't try this at home) and was also playing 10 years ago in a live tournament setting when/where the general style was TAG.  If you are playing LAG and everyone else is playing TAG, you should be able to steal a lot and do very well until they make adjustments, then you change gears again.  However, if you are playing against loose-passive call stations or maniacs and try to play LAG its akin to slamming your own head against a brick wall.  Sure if you slam hard enough maybe the brick wall will budge, but idk why you would want to try!  Also keep in mind in that tournament that he was down to 12K from 20K and doubled up three times to finish day 1 with close 100K but all three times when he doubled up his opponents made dubious (read terrible) calls based on his presumed image.  So there is some luck involved whenever you are playing a lot of pots.  In one sense you are giving yourself a chance to hit more flops but on the other hand you are putting chips in the middle and that will lead to an early exit if you don't hit. 

On the other hand, 60% isn't even that much imo.  Recently I played in a 6max ACR tournament and placed 4th, getting knocked out only because I had gotten sucked out on twice in the space of two hands but had been a major chip leader for quite a while.  I knew I was playing I lot of hands so I looked back and my VPIP was > 90%.  I've also won tournaments in live where my VPIP was probably >60%.  But it really depends on the weaknesses of your opponent.  If they have some obvious, exploitable post-flop errors then by raising so many hands you not only get a chance to steal blinds but you get a chance to outplay them post-flop.  However, there are situations where playing a lot of hands is suicide.  It seems every time I try to open up online in the early stages of tournaments I am getting 3 and 4 bet with air with weak hands.  The easy adjustment to that is to wait until you have premiums and just ship it in when you have the better of it.  It's really simple, just wait until you have a hand that is solidly ahead of their range, and try to get as many chips in the middle as possible.  Generally, by the time the antes are introduced most of the maniacs will have been eliminated and you will be facing TAGs and maybe 1 other LAG, enabling you to steal at will.  Maybe you get unlucky and get another LAG or two at your table, but it's pretty easy to stay out of pots against those guys, or else just wait until you have the better of it and rope them in.

The reason why LAG is successful for so many guys isn't because it is intrinsically a better style…It is because there are so many marginal players that exploiting their weaknesses yields a higher EV than playing closer to GTO.  Playing more hands gives you more opportunity to exploit those weaknesses.  However, if players make the proper adjustments now they are exploiting you because you're playing too many marginal hands.

I would stop thinking of things in terms of style, but rather in terms of exploitation, and initiative.  Generally, you will make more money by exploiting the weakness of others rather than shoring up your own.  Playing with initiative is better than not, meaning you generally want to have position, and also you want to take the initiative in the hand.  E.g. rather than flatting, a lot of the time throwing a small 3 bet out there won't make a substantial difference in the value of the pot relative to your stack (especially if you are deepstacked) but it gives the illusion of initiative in which case its alot easier to take down the pot with post flop stabs.    

Early in tournaments though I think the best thing to do is mix it up.  Sometimes I will 3 bet with marginal holdings just to see what my opponents will do and since the blinds are low it's very cheap information.  Other times I will flat a raise with a premium not only to induce a squeeze but also because it doesn't hurt to see cheap flops every now and then.  It's important not to always do this because then your opponents will/should catch on that strong means weak in your case, but doing it every once in a while can really give opponents a false perception of your range, which will come in handy later on.  Basically don't be afraid to engage in suboptimal lines early on if you think it can set something else later when its going to be a lot more value.              

As far as LAG content goes, it’s hard to imagine anyone more LAG than BigDog once the antes are introduced.  However, he plays very tight early because there simply isn’t much reason to fight for pitiful blinds that early.  Agreed that most TPE pros are pretty tight, but I also think that’s an adjustment you have to make to counteract the aggression of online play.  In live, my experience has been that I can pretty much steal at will a lot of the time. 

I also think that because terms such as LAG and TAG are not clearly defined, that like minds can differ.  But when you're LAG I don't think the primary goal is to bluff, contrary to popular opinion.  I think the goals of a LAG are three-fold: 1) Steal a lot of blinds; 2) Cultivate a loose image; 3) Use that image and the fact that you are seeing a lot of flops to exploit your opponent's tendencies and outplay your opponent post-flop.  That may include post-flop bluffing if your opponents are folding too much.  However, it could also mean LESS post-flop bluffing if your opponents try to adjust by calling down lighter.  You are allowed to hit flops, even as a LAG, and I know a number of players who raise a lot pre-flop and post-flop get a ton of value when they hit.  But they don't bluff a lot.  I think Gus is one of those players who play like that.

Sen said:

Well, I guess tendentially I’ve already been playing LAG as soon as antes come into play and the table allows it. My VPIP may go up to 30 – 40%, raising with QTo, 76s, J9s and stuff like that, and very rarely, when I feel I’ve got a 50%+ chance to steal even with total RAGs like 93o etc.  Also my defend BB is pretty high when I see bad players stealing too much.

Still I can never in a million years imagine playing 60% – 90% of hands. How could that ever be possible unless your opponents fold every time to a cbet without toppair/overpair on the flop?

As far as this range goes, I'm not sure I would even call this LAG in a 6max high ante tournament, for example.  As a baseline I like to compare the value of the blinds/antes to the number of players at the table to get how many hands I should be playing.  In other words, 10 handed with no antes, that is 1.5 BB and 10 players, so I should be playing top 15% hands.  I can mix in some steals here and there but 15% is the baseline, so basically just AK, AQs, KQs, and pairs.  If you compare that to its polar opposite, which is 6max with antes, that is quite different.  If the antes add up to 1 BB then you have 2.5BB for 6 players, which means you already should be raising any above average hand.  Q9o is the average hand so you should be raising anything better than that.  In that situation raising with a hand such as Q10 isn't even stealing, it's raising for VALUE.  So it really depends on the situation.  My VPIP in early stages of 10 handed tournaments is restricted strictly to premiums and I open up from there. 

Another thing is that HUD stats are not perfect.  They are useful, but not perfect.  I think most players fail to adequately adjust to the situation they are in.  Basically, they play too many hands when there are no antes, and aren't aggressive enough post-ante.  If I look at myself, I might play 15% of hands pre-ante, but in some 6 max tournaments I may play 85% of hands post-ante.  So if you looked at my HUD my VPIP will be somewhere between 40% and 50%.  If someone interprets that to mean I'm a LAG and 3bets me light in the early stages of a tournament he will be disappointed when I 4bet him with only superpremiums and he stacks off with AJo.