"Tough" All-in/Isolation Hand

[MeanGreenTT]

PS $5r/a Sat to 700k - 14 seat and we have 3 tables left

Table has just seen me donk my way to over T100k when I raised pf with 99 and got cold-called and called all-in by a s/s. I bet T10k into a rainbow/unders dry-side flop and again am cold-called with 3rd player all-in. Turn is another blank and I again fire into the side for T10k and again am cold-called. River makes my Set and bet T10k again (enough to put vilian all-in) and am called, he shows QQ, both are busted.

Vilian was moved to the table 6 hands ago, so no real read. Single hand he's played was to call a s/s pooosh with AQo only to lose to AKo.

Which leads us to the next hand played:

PokerStars No-Limit Hold'em Tourney, Big Blind is t2000 (8 handed) internettexasholdem.com

UTG (t2375)
UTG+1 (t14065)
MP1 (t62658)
MP2 (t37944)
CO (t10111)
Button (t63652)
Hero (t105074)
BB (t23200)

Preflop: Hero is SB with J[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/club.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">UTG+1 raises to t13965</font>, <font color="#666666">3 folds</font>, <font color="#CC3333">Button raises to t25930</font>

Hero???

I'm not worried one bit by s/s poosh (nor the bb coming along for the ride) but the "mini-raise" isolation has me a tad concerned. I would normally expect a player to simply poosh here to isolate, hence the confusion. I have vilian covered but if I lose here, it's gonna be a tough climb to seat.

I could pull a stop 'n go, likely the most effective play as he has to be concerned about seating as well.

2nd option would be to poosh over the top and put the pressure on right now, can't fear the monsters under the bed right?

Folding seems weak-tight to me but it damn sure feels like a coin-flip or 4-1 dog.

Color me confused!