Lifters; Crower vs. Erson?

12many said

During preassembly I like sliding the cam in with the gear attached and dropping in the lifters with some WD-40 sprayed on everything, you can just spin the cam by hand and watch the lifters spinning. Nice to know they do before moving on to valvetrain assembly mock-up, checking, final assembly etc. A pre pre-check if you will. Takes very little time.

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I plan to put the pan on with 4 bolts and shaft prime the pump again to watch the lifters spin also while checking valve clearance (modeling clay in valve reliefs)
Also to check oiling again.
3 birds 1 stone.
I already locktighted/torqued the timing set otherwise I would turn the cam by hand. I missed that easier process but can do while checking valve clearance.