NL400, overbet bluff på riveren?

***** Hand History for Game 5436391267 ***** (On Game)
$400.00 USD NL Texas Hold'em - Tuesday, September 08, 01:08:20 ET 2009
Table Witten (Real Money)
Seat 3 is the button
Seat 4: Hero ( $380.00 USD )
Seat 5: Valuebaction ( $472.10 USD )
Seat 8: omahafan24 ( $537.90 USD )
Seat 2: BenjiUltra ( $305.20 USD )
Seat 3: ABCNLHE ( $412.00 USD )
Hero posts small blind [$2.00 USD].
Valuebaction posts big blind [$4.00 USD].
** Dealing down cards **
Dealt to EducationLOL [ 9s 9c ]
omahafan24 folds
BenjiUltra folds
ABCNLHE raises [$10.00 USD]
Hero calls [$8.00 USD]
Valuebaction folds
** Dealing Flop ** [ 3s, 7d, Ac ]
Hero checks
ABCNLHE checks
** Dealing Turn ** [ 8h ]
Hero bets [$16.00 USD]
ABCNLHE calls [$16.00 USD]
** Dealing River ** [ 5s ]
Hero ??

Er et lille overbet på fx. $72 godt her? potten er $53 på riveren.
Villain er en regular og CBetter normalt meget ofte på Axxr.

Hvad mener i?