i would probably snap you off with any pair because this looks only like a flush draw.  You never do this with a jack, like fkcoolers said, also i don't think you ever do this with midpairs.  I don't know you, but I assume you don't play AA-QQ like this, so it leaves you with flush draws and very ambitious bluffs.

I play a lot of cash myself and first of all, balance isn't that important against mediocre players.  Second, how can you be balanced in this spot?  If you just do this with Jx and air you have very few playable combos of the remaing 2 jacks left.  Especially if the only off suit combos you are playing are AJo.  Think of all the combos that are air here or flush draws.  With you overbetting the pot you need to get folds like 75% of the time with this bet, but you will have some equity in the pot occasionally so we can make the fold % like 70%.  Is your range 70% Jx combos here?    

Overbets are an important part of deepstack poker and useful in certain situations.  A good spot to overbet is when someone has capped their range, which has not happened here b/c this guy could play many hands this way at these stack sizes including QQ+.  He would call all of his value hands on the flop with these stack sizes, so his range is still very wide and includes lots of nut type hands.  

If you are obssesd about balance you should make a more standard betsize on the turn which would be a profitable bluff, semi-bluff, thin value from an overpair type hand, and value from a jack.  That makes you very hard to play against.  Overbets are not for balance nuts, but they are useful as balance is overrated unless you are playing 1kNL.  I could go on for a while on these topics, but I doubt many people even read up to this point haha so I'll put a cork in it for now.