CO and blinds are pretty much all unknown, only 10-15 hands on each of them. 

I've been toying with my 3bet game a lot and trying to adjust my 3bet ranges.  Not sure if the 3bet is good but don't hate it and don't think it can be too bad.  The 3bet might be the most interesting part of the hand to discuss, what kind of 3bet ranges should we be employing here given that everyone is unknown?

Winning Poker Network – 60/120 NL – Holdem – 9 players

Hand converted by PokerTracker 4

MP: 79.67 BB

MP+1: 76.67 BB

MP+2: 94.5 BB

CO: 70.23 BB

Hero (BTN): 78.3 BB

SB: 89.33 BB

BB: 109.89 BB

UTG: 77.66 BB

UTG+1: 87.42 BB

SB posts SB 0.5 BB, BB posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has K4

fold, fold, fold, fold, fold, CO raises to 3 BB, Hero raises to 8.24 BB, fold, BB calls 7.24 BB, CO calls 5.24 BB

Flop: (25.23 BB, 3 players) K36

BB checks, CO checks, Hero checks

Turn: (25.23 BB, 3 players) J 

BB checks, CO bets 25 BB, Hero raises to 70.06 BB and is all-in

OTF: 

I think checking back weak TP in this spot is kinda sexy and balances our checking range a bit, also it's going to be hard to get much value with a cbet here.  We're basically only gonna get called by better Kx, AQ spades, AJ spades, maybe some floats with like TT,JJ but unlikely. 

OTT: 

When CO full pots here I think he is kind of full of it.  Seems like AJ is probably the top of his range and even betting that here seems kinda strange/spazzy?  I mean, why would someone full pot something like KJ here and end the hand?  Likewise I think something like AK that checked flop is going to be betting like 1.6-1.8k or less here, not really wanting folds.  This bet seems like it's something like a turned FD+pair or maybe even naked FD's, I just think we are ahead here nearly always, and also not concerned about BB's range checking 2 streets.  Villain has kinda committed themselves here and I think it's a clear jam.

Thanks for reading and plz discuss any and all streets!!  I'm especially interested to hear thoughts about preflop.