Originally Posted by macke

Mine is from the first batch from Tower... I am using two thin shims (total of 0.2 mm) after the slipper thrust washer. I have not measured the thrust spacer but I use the shims just in case.

My local track is a combination of dirt, some parts loose some parts hard packed and it also has sections with astro turf. So the driving surface varies around the track. I do also run the Castle 3800. I have not been anywhere near to do a wheely on the astro turf (high bite)...