I got the custom wound motor installed. Even though it's dark outside, I had to go try it. MUCH Better!
Much better low speed driveability. Cogging is almost non-existent. I can make it cog by grabbing WOT from a stand still, But even then alot of the time it will blast off with the front end in the air. It will do 4 wheel burnouts on the concrete drive.
Torque is MUCH better. Top Speed seems a little lower on 4S than the 4120 660kv. I'm thinking this will be a GREAT 6S setup. I ran it for about 10 minutes and the motor was cool to the touch. It's 37 degrees outside, but I don't think temps are going to be a problem. I also put thermal heat sink compound between the motor and the mount.
Now that I have cogging under control, I'll start bumping up the voltage until I get the speed I'm looking for.
@Johnrob - Is there any way to estimate the KV rating of an AXI 4130 4 turn wye wind? 6 strands of 22awg?