If the standard bronze bush really deforms under hard and long kickstart pressure it could also make the pinion to tilt a bit under pressure and might be one of the reasons for the often skew/oblique/slanting?? wear of the pinion teeth and kickstartquadrant.
With a steel bush you can also safely clamp the whole mainshaft assembly with all its bushes and shims firmly around the small bearing without worrying to deform it. BR Michiel
I'm not overwhelmed with the tooth profile on the kickstart gears and that may not help with the loading Michiel.
Before I made any steel bushes to retail for the pinion, I would test them extensively myself. But it does make more sense to have a steel bush that you can tighten against without fear. Sorry for my Blasphemy.
The kickstart gears will have to be sent away for the profiles to be analyzed. The result I expect will be that the gears I produce will not be compatible with the Indian ones in use now. One good thing will be that my kickstart quadrants will be supported by the layshaft bush.
