$11: Risking too much with jacks on level 3?

I'm starting to think that almost all of my hand help request posts are pretty obvious, and that I'm doing the right things, but I'm too results oriented to see it.

I'm results oriented because the results have not been so good. I usually go through all my hand histories but rarely find anything stupid. There must be some leaks that I'm not aware of, but I just can't find them. So instead I end up posting another semi-meaningless hand like this [img]/images/graemlins/blush.gif[/img] .

So, here we go:

Party Poker No-Limit Hold'em Tourney, Big Blind is t50 (9 handed) FTR converter on zerodivide.cx

CO (t1295)
Button (t805)
Hero (t1050)
BB (t1140)
UTG (t215)
UTG+1 (t720)
MP1 (t1415)
MP2 (t655)
MP3 (t705)

Preflop: Hero is SB with J[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/spade.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">MP1 raises to t100</font>, <font color="#666666">2 folds</font>, CO calls t100, <font color="#666666">1 fold</font>, Hero raises [t1050]

Standard? This was not the first minraise from the mighty minraiser, so I was not really scared of him and the calling didn't show much strenght either. So I figured I have the best hand here and pushed hoping to take the pot right here.

I do this everytime with stacks around 600 on level 3, but is my stack this time too big to risk this early?

- Begbie