Pre-lubed Hydraulic Lifters

I voted prelube. Dad always prelubed and pumped them up somewhat the old school way. He'd stand them up in a metal coffee can, submerge them in marvel mystery oil, or the thinnest Kendall oil he could get and hand me a pushrod saying "here ya go. Start with one and push it down and let it up - repeat for a while, until you get no more air bubbles out of them" . I still do it the same way. I've only built 7 or 8 motors, so not a lot of experience with it, but never had an issue related to lifters.