I'm a long time cash hu player and just recently started playing hu sng's. I'd do this all day long in cash hu and expect to get called (by both regs and fish) by a random 5 or even 3 sometimes. But is this a total spew in a hu sng, should I just check back the river or valuebet something like 300?

First time I play this villain, he's 28% ROI over a small sample. He seems very solid. He also caught a bluff from me earlier when I fired 3 barrels on a four-flush board and he called with two pair. I basically think that he doesn't believe in me being able to valuebet 3 barrels with Qx or shoving the river with Ax. Therefore I think I could get called by worse, as this line looks very bluffy and I have a bad/tilty/bluffy image. And as I'm ahead of his calling range, and I think he calls a shove with basically the same range as he calls a smaller bet, shouldn't I always be shoving? Thoughts?

PokerStars Game xxx: Tournament xx, $22+$1 Hold'em No Limit - Match Round I, Level I (10/20) - 2009/06/27 10:37:14 EET [2009/06/27 3:37:14 ET]
Table '174985933 1' 2-max Seat #1 is the button
Seat 1: cannotletgo (1090 in chips)
Seat 2: Mendoza 000 (1910 in chips)
cannotletgo: posts small blind 10
Mendoza 000: posts big blind 20
*** HOLE CARDS ***
Dealt to cannotletgo [Ks Kh]
cannotletgo: raises 40 to 60
Mendoza 000: calls 40
*** FLOP *** [5h 3s Qd]
Mendoza 000: checks
cannotletgo: bets 80
Mendoza 000: calls 80
*** TURN *** [5h 3s Qd] [As]
Mendoza 000: checks
cannotletgo: bets 140
Mendoza 000: calls 140
*** RIVER *** [5h 3s Qd As] [4d]
Mendoza 000: checks
cannotletgo: bets 810 and is all-in
Mendoza 000: calls 810