WCS for cylinders

Where is a guide for setup on cylinders? My questions are similar to this person’s WCS and Zeroing for Cylinders - Fusion 360

Ive broken 4 end mills already trying to figure this out.

Can you detail the issue a little bit more? How are the cutters being broken? What part of the setup is the main trouble?
Regards
TP

Set WCS at the top of cylinder and using TCPC measure only Y offset.