Home game 4 handed SnG tournament. Starting Stacks 1000. I have high stack about 1600. My image is slightly LAG, but I haven't gone deep without something special yet. Blinds are at 25/50. Everyone limps and I raise to 150 with K9 suited on the button. Everyone calls. Pot 600. Flop comes out 562 rainbow. TAG, intelligent, rather weak tight SB with 800 chips left leads out for 300. Other two people fold and I push without any sign of hesitation. Thoughts?