[Mitke]

* g *

Nice hand.

Slowplaying with two pairs is not my thing, in general. If your read was that CO is passive then your raise was good. I think CO still would have hanged around with AJ+ most of the time. He probably mucked JJ-KK.

As for the flop cap. Villain looks like he has either AA, TT, A5, another AT or 55 (T5 not likely).

Losing:
AA = 1 combo (would have capped preflop)
TT = 3
55 = 3 (not a common "3bet cold call hand" to 4-3 way pot, even from SB)
= max 7

Winning:
A5 = 6 (not very likely to cold call 3-bet either)
AK/AQ/AJ getting out of line = max 24

Splitting:
AT = 4

In this light your line looks good. Moreover, you're in position and will have some control over how much bets go in before showdown.