lifter bleed-down and RR adjustment?

[matt cook]

yeah, these are pedestal mount on E7's. Yeah the lifters have 100k miles on them, they just haven't been run in months.

If I push down on the pushrod seat in the lifter, there is no movement, but by taking the lifter out and filling it with oil, I can move the plunger? Is this difference what the preload takes up, and will I have problems if the lifters are already 'collapsed'...

I have never done this before and do not know what it should feel like...

thanks