Squeeze play- good spot or on tilt?

[Secret Squirrel]

Live tournament- loose but usually several limpers in unraised pots PF.

Blinds 300-600 (raising each 30mins next time 400-800).
Avg stack about 12,000.

Reads: BB is tight in comparison with the rest of table.
Late position limpers tight.
Early position limpers loose- at least one is very inexperienced.

I have being showing down premium hands and seen as a player to avoid. Bad beat with a monster 3 hand prior to this.


UTG 6,000
UTG+1 9,000
MP 8,000
MP+1 8,000
MP+2 15,000
CO 7,000
BT 14,000
SB (HERO)9,000
BB 20,000

HERO has A9 [img]/images/graemlins/heart.gif[/img]

UTG: calls, UTG+1: calls, MP: folds, MP+1: calls, MP+2: calls, CO: folds, BT: calls, SB: HERO <font color="red"> </font> Raises to 3,000.

Is this a good spot for tring to make a move considering early limpers are loose and later limpers tighter?

Also what about the raise size. I pretty much am forced to call one of the smaller stacks if they push over me. However, if I raise smaller likely to encourage callers. My thinking now is that pushing all-in pre-flop would eliminate a difficult decision (as would folding pre-flop) or was I just on tilt.