The K4 works a hell of a lot better in sim than arcade, and the 51 works a hell of a lot better in arcade than sim. I use the K-4 frequently and can fly it rather well. It's fast and turns good if at the right speed and you use flaps and rudder. Of course, too much rudder and you stall. It's not good 1 v 1 because it's not the best turning plane. But it definately turns good enough to get a squirt in on an ususpecting player who is involved in a fight already, and with it's excellent guns, that's all you need. I've gotten three triple kills with it. Bang, bang, bang on a snake train!!!!! Just make sure you have the sensitivitys all the way up. This thing will turn with full elevator.

And I agree you should stick to a plane or two. Common sense dictates that countinually switching aircraft is like a jack of all trades, but master of none.