i tried to skiv sheep hide of 1.3mm thickness to 0.5mm by using my bell skiving machine. but it did not work no matter how i tuned machine. the hide went through feedroller, the thickness was still same, machine can only skiv slightly. same setup of machine, i can easily skiv goat hide for 0.5mm thickness.
it is because sheep skin is too soft and stretchy. anyone has same issue? how could i solve this problem.

it was not easy but it works for sheep skin. what i did, first rewatched bell shape machine course again. i found out the problem was from bigger gap between rotating blade and pressing foot. I bring it a bit closer to pressing foot, problem solved. but i need to say I did 3 times skiving to carefully and gradually skiv down the thickness (1.3mm to 1.0mm, 1.0 to 0.6mm, 0.6-0.3). to deal with compressed loosing grain, i ironed suede side afterward in order to make it flat,