[spiftacu1ar]

meshing with paper is not ideal, it gives a basic start though. You want to set it as close as possible without binding. Easy way to do this, is to move it close, and then see if the spur can still move a little back and forth before actually turning the pinion. It should be a very small amount of play. Paper mesh is too far apart, a little less is better. Another way is to keep moving it closer a TINY bit at a time until it starts binding, and then move out a tiny bit until it stops binding.

Another thing, Janezki is using budget hardware (from what I see in the pics), and you (Joram) are using a beastly top-of-the-line system that probably puts out a whole lot more torque. Yours might still strip the plastic spur, but I doubt it. Nylon is stronger than most people realize. For gears, they can be almost as strong as hardened steel because they give a little. However, if there is a lot of heat, they melt, which can be a problem in high heat applications.

I use a steel spur, but that is for a totally different reason. The plastic one is thicker, and it interferes with the chassis b/c of the way I have the tranny mounted up, the steel one is thinner, so it clears the chassis.