Middle pair in 22s

[bones]

Party Poker No-Limit Hold'em Tourney, Big Blind is t30 (7 handed) converter (http://www.selachian.com/tools/bisonconverter/hhconverter.cgi)

Hero (t830)
UTG (t1580)
MP1 (t875)
MP2 (t465)
CO (t1675)
Button (t1065)
SB (t1510)

Preflop: Hero is BB with T/images/graemlins/heart.gif, K/images/graemlins/spade.gif.
<font color="#666666">2 folds</font>, MP2 calls t30, <font color="#666666">1 fold</font>, Button calls t30, SB completes, Hero checks.

Flop: (t120) 7/images/graemlins/diamond.gif, Q/images/graemlins/heart.gif, 5/images/graemlins/diamond.gif <font color="#0000FF">(4 players)</font>
SB checks, Hero checks, MP2 checks, Button checks.

Turn: (t120) T/images/graemlins/spade.gif <font color="#0000FF">(4 players)</font>
SB checks, <font color="#CC3333">Hero bets t90</font>, MP2 folds, Button calls t90, SB calls t90.

River: (t390) Q/images/graemlins/club.gif <font color="#0000FF">(3 players)</font>
SB checks, Hero checks, <font color="#CC3333">Button bets t350</font>, SB folds, Hero calls t350.

Final Pot: t1090

This is a line I've been working on for a few weeks. Thoughts?

River bet's a little big relative to your stack, which frustrates me a little. I think you played it right though. River check is optimal in terms of cEV, but I wonder if blocking bet is better in terms of real EV, as it lessens chip variance. I suspect that you're play is right, but that's something to think about here.