Stack sizes
BB: 20
UTG: 200
MP1: 275
MP2: 250
BTN: 190 (Hero)
Hero dealt K
J
on BTN.
UTG raises to 7, MP1 calls, MP2 calls, BTN calls, BB calls.
Pot 36
Flop J
8
4
BB bets 12, UTG calls, MP1 calls, MP2 calls, Hero ??
So basically the UTG raiser most likely raised with a drawy hand as he raised larger when he had good holdings. When he just calls the shortstack's bet I don't figure him to have much (or he has a monster and is slow playing it) as there are tons of draws out there. MP1 and MP2 can't have too much as they are only calling the initial bet.
It seems to make sense that I should raise here as everyone seems weak, however, with the stack sizes if I don't raise enough I am likely to get everyone calling me, if I raise too much I am committed to the hand with only TPGK.
How should I proceed?