Generally, performance cams like that from a “cam grinder” would have .0020-ish lobe taper(front to rear).
MP cams typically have closer to .0010-ish lobe taper.
Less taper = less lifter rotation.
The wear pattern on your cam is fairly well centered on the lobe, which is typical when there is less lobe taper.
My suggestion is to very carefully verify that each lifter has some positive rotation every time it goes up/down.
It doesnt need to move much...... but it has to move.
I would also use cam lube on the lifter faces and treat the first start up like you would to break in a new cam.
If any of the lifters don’t turn...... it won’t live.
As far as “wear” goes..... looking at pics on my phone....... it looks okay.
