Thanks for the good input.
That's brave running the 4300 on 4s but I Iike it. I've had Tekin stuff in the past and they make high quality stuff for sure. I can't justify Tekin prices for a basher though. For the price of a pro4 I can almost get a Hobbywing esc and 4065 size 2700 kv motor.
The xk motors are Turnigy motors from Hobbyking. I've never tried them but a 3665 size 3150 kv motor for $40 seems like a good deal. Even if it only gives 90% of performance of top motors, I'll accept that for a basher.