Rec Poker

Hand Scenario: $280 buy-in tournament with 6 day 1's which includes buy backs (if advance to day 2 twice, you play the bigger stack and get $1,200 for the small one that is forfeited). Start with 20,000 chips and will play 16 30 minute levels on day 1. Advanced with small stack in day 1A and playing day 1B. Have a very tough table but have managed to build from 20k up to 60k about half way through the day. We are in level 8 with the blinds at 300/600 and a 50 ante. 10-handed table. I am in the cut-off and it's folded to me. I have a very solid image as everything I have had to shown down has been a very good hand. I decide to open to 1500 with KJ offsuit (K spade, J clubs) (thoughts?) I get called by the button, a very solid player who doesn't get out of line but is definitely capable of floating and applying pressure. He is the only stack at the table bigger than me (of course) with about 70k (Derek Murphy for those of you in Minnesota). The blinds fold and Derek and I are heads up with a pot