Bronze gear necessary??

There are two issues here
One is wearing a bronze or other gear due to incompatibility with the cam
The other is wearing the cam due to changing from bronze to other gear
or if you get lucky
BOTH
trouble following your post... but.... are you saying I shouldn't use the crane gear after it's been run about 3k miles on the bronze gear? Comp cam tech told me no issue, their cam wouldn't have a wear pattern with the bronze, but rather the bronze would be worn from their cam.