Was a little unsure how to play this PF.

Limper is a fish.  Raiser has been active, but hasn't really got too out of line.

PokerStars Hand #79798387054: Tournament #571010493, $10+$1 USD Hold'em No Limit – Level IV (25/50) – 2012/05/02 19:36:14 WET [2012/05/02 14:36:14 ET]
Table '571010493 441' 9-max Seat #1 is the button
Seat 1: pts144 (2765 in chips) is sitting out
Seat 2: Assassin2006 (5876 in chips)
Seat 3: VST427 (2990 in chips)
Seat 4: Graham Razzi (5916 in chips)
Seat 5: Mlha11 (1260 in chips)
Seat 6: jpad86 (3000 in chips)
Seat 7: Lydan1509 (1314 in chips)
Seat 8: Alex_copita (2518 in chips)
Seat 9: belodo (2985 in chips)
Assassin2006: posts small blind 25
VST427: posts big blind 50
*** HOLE CARDS ***
Dealt to belodo [Js Jh]
Graham Razzi: folds
Mlha11: calls 50
jpad86: raises 100 to 150
Lydan1509: folds
Alex_copita: folds
belodo: calls 150
pts144: folds
Assassin2006: folds
VST427: folds
Mlha11: calls 100
*** FLOP *** [7h 2h 6d]
Mlha11: checks
jpad86: bets 525

Should I 3B this pre?

His PSB on the flop is pretty…. well…. committing?