Live 3/5NL: probably boring 4-spade river spot

[HoldEmKillah]

Last night at a local private game.

UTG has ~$800, MP ~$600, I cover...

Decent, slightly loose player limps UTG, a tight, good thinking player in MP limps (he's also tricky) and I raise to $30 in the CO w/3 [img]/images/graemlins/spade.gif[/img]4 [img]/images/graemlins/heart.gif[/img] . Both call. I've been playing very aggressively raising many pots but haven't gotten out of line (that they know of). Everytime they have seen me in big pots, I've been ahead. They know I'm playing lag but also know that I'm not dumb.

FLOP: K [img]/images/graemlins/diamond.gif[/img] 5 [img]/images/graemlins/spade.gif[/img]6 [img]/images/graemlins/spade.gif[/img]

UTG bets $60. We both call.

Turn: 8 [img]/images/graemlins/spade.gif[/img]

checked around

River: Q [img]/images/graemlins/spade.gif[/img]

UTG checks, MP splashes out $100. I raise to $300

fine?