Post heat treat grinding/ regrinds/learning how

Agreed... i am lucky to have excellent ones... bought them a long time ago

Ditto above. Also, I think there was something on this post about crowning contact wheels. My understanding is that drive wheels are crowned, but contact wheels need to be dead flat.

That is how i have it... unless you are making a kris... then a radiused wheel is useful... having said that a few knifemakers i know use skateboard wheels as small wheels or platen wheels... but not the really cheap ones...