Good tip from teamtrf thanks! I also have pretty much Jimmy Wright setup on 201xr as well.
I also noticed there's much less ackermann on the kit setup than what i've had in my 501. And I really liked how 501 cornered.. So i've flipped the steering rack now. (Moving the ball "back" gives you more ackermann right?)
Also the rear was surprisingly soft in big jumps. I had little trouble slammin the rear on take off. Without the ballast and lightest batteries it still slammed the rear. It was kinda strange, because i hadn't that problem with normal bores at all. (on 201xr the big bores worked beautifully on the same track altought with 1.6mm piston) So the 1.6mm piston could be the solution for 4wd too. Oils we're UR 40 front and 35 rear.
Here's a comparison of the steering racks (503 up as in the kit setup). U also see it was a bit wet because the snow just has melted up here.