(0.25/0.50) TT in a very large pot

[sopoRific]

I don't have more than 30 hands on anybody. CO is 30/9/1.6 over 23 hands, and hasn't limped/reraised yet. SB and MP3 are both about 20/3 over 25 hands or so, and I have nothing on UTG.

PokerStars 0.25/0.50 Hold'em (10 handed) TightPoker converter

Preflop: Hero is BB with T[img]/images/graemlins/heart.gif[/img], T[img]/images/graemlins/club.gif[/img]. MP3 posts a blind of $0.25.
UTG calls, <font color="#666666">3 folds</font>, MP2 calls, MP3 (poster) checks, CO calls, <font color="#666666">1 fold</font>, SB completes, <font color="#CC3333">Hero raises</font>, UTG calls, MP2 calls, MP3 calls, <font color="#CC3333">CO 3-bets</font>, SB calls, <font color="#CC3333">Hero caps</font>, UTG calls, MP2 calls, MP3 folds, CO calls, SB calls.

Capped 5 ways with a limp/reraise by the CO. Capping seems natural with so many people still in the pot, and I would expect CO to raise his premium hands with three limpers to him. What range of hands could I assign to CO?

Flop: (22 SB) Q[img]/images/graemlins/club.gif[/img], 3[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(5 players)</font>
SB checks, Hero checks, UTG checks, MP2 checks, <font color="#CC3333">CO bets</font>, SB calls, Hero calls, UTG calls, MP2 folds.

Turn: (13 BB) J[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, Hero checks, UTG checks, <font color="#CC3333">CO bets</font>, SB folds, Hero ???

Seems I should be folding here, but the pot is so big...