$16: UTG with KJo and 21BBs on the bubble

[Gnumsploitz]

PokerStars Tournament, Big Blind is t200 with t25 antes (4 handed) Converter on pregopoker.com

Hero (t4225)
Button (t2740)
SB (t4985)
BB (t1550)

Preflop: Hero is in CO with J[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/heart.gif[/img]
<font color="red">Hero raises to t500</font>, <font color="gray">Button folds</font>, <font color="gray">SB folds</font>, <font color="red">BB raises to t1525 (All-in)</font>, Hero calls t1025

I'm posting this per the request of another 2p2er and because of my own doubt that I may have badly misplayed this. 2p2er was Villain in this hand. I ended up raising 2.5BB hoping to put myself in a position where I'd be able to dominate the bubble when the blinds reached the next level(s). Would you raise more because of the antes?

I thought about folding preflop here at first. The table wasn't exactly loose, but not unusually tight either. I would never push here, and I don't like limping in this spot.

When Villain pushed over the top of me, I'm faced with a ~3:1 call. I'm behind to any ace and I'm probably not beating anything in his range. My read is that Villain might realize I'm raising with more hands than usual here and adjust accordingly, but because of the stack sizes, he doesn't have a ton of fold equity so he probably doesn't make this move with trash. However, I made the call anyway because of the odds and noting at the time that if I lose, I'm still left with 2700ish and I'm not in horrible shape.

Was this terrible?