I have a 46AX on my TWIST. It has plenty of power. I took the Evolution .46 off of my Ultra Stick and replaced it with a .55AX. The difference is stunning. I have found the .55 to be very reliable and to my surprise the motor is much more fuel efficient than the Evolution 46. The .55AX is a winner.

I am thinking about building a new Kadet LT40 for training - the old one is looking a little worn from use. . If I do build a new LT 40 I'll put a .55 AX on it. Should be a perfect match.

bob