66 on a 578 board

[luckbalks]

Villain is 56/26/2

Should I have checked this flop considering that if I raise and get re-raised I have to call? Should I have checked this flop no matter what the chip count?

Full Tilt Poker
$0.10/$0.25 No Limit Hold'em Ring Game
5 Players
LegoPoker Hand Converter

<font color="black">Stack Sizes</font>
BB: $10.8
Hero (UTG): $35.20
CO: $17.40
BTN: $12.75
SB: $50.95

<font color="black">Preflop:</font> 6[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/club.gif[/img] ($0.35, 5 players)
Hero calls $0.25, <font color="red">CO raises to $0.75</font>, BTN folds, SB folds, BB folds, Hero calls $0.50

<font color="black">Flop:</font> 5[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/heart.gif[/img] 7[img]/images/graemlins/spade.gif[/img] ($1.85, 2 players)
Hero checks, <font color="red">CO bets $1.85</font>, <font color="red">Hero raises to $7.40</font>, <font color="red">CO raises all in to $16.65</font>, Hero calls $9.25

<font color="black">Turn:</font> 5[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/heart.gif[/img] 7[img]/images/graemlins/spade.gif[/img] [J[img]/images/graemlins/club.gif[/img]] ($35.15, 2 players)
No action

<font color="black">River:</font> 5[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/heart.gif[/img] 7[img]/images/graemlins/spade.gif[/img] J[img]/images/graemlins/club.gif[/img] [K[img]/images/graemlins/spade.gif[/img]] ($35.15, 2 players)
No action