A set of nines -- a good time to just call?

[Nick C]

After enduring a few orbits with players who were tighter than my own sLA-A self, some turnover had taken place, and I was starting to like the table.

UTG, however, is a rockish TAG.

Party Poker 3/6 Hold'em (10 handed) converter

Preflop: Hero is MP3 with 9[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/diamond.gif[/img]. CO posts a blind of $3.
<font color="#CC3333">UTG raises</font>, <font color="#666666">1 fold</font>, UTG+2 calls, <font color="#666666">2 folds</font>, Hero calls, CO (poster) calls, <font color="#666666">1 fold</font>, SB calls, <font color="#666666">1 fold</font>.

Flop: (11 SB) 5[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(5 players)</font>
SB checks, <font color="#CC3333">UTG bets</font>, UTG+2 calls, Hero calls . . .

All right. Let's stop here. Should I just raise?

I know this is a stupid "should I slowplay?" question, but during the session I felt like I was getting great cards but wasn't maximizing.