Ok, thanks for all your answers. Ill try it no mesh in gears and soft slipper.
Now I have a new question :-)
Im driving on very bumpy and gripless tracks in Germany. For my B4.1 I drilled shock pistons with 2x1.3mm and 2x1.4mm on one plate. This is working very fine. But on 4wd ist is too soft i think.
The next step could be, filling the shocks with softer oil 30/25, cause it is cold here.
In setup sheets of the worlds, Cavaleri and Maifield wrote something like drilled #1 (54). Does someone know how many holes they drilled ?
To the best of my knowledge they drilled out the existing holes. I can ask Maifield the next time I see him at SRS Raceway in Scottsdale. Really nice guy, a true ambassador to the sport.