Lunati Retrofit Hydraulic Roller

I agree with the staying with a solid lifter. I went hydraulic roller, but I don't remember what kind of lifters I have, if they have that oil hole on top or not, or if they are bleeding off oil pressure from coming out of the lifter bores slightly.

Next time I will pay to bush the block and run solid rollers.
I dont understand how they could bleed off from the hole being exposed.
Once the oil is trapped in the lifter you should be able to pull them from the bore and the lifter should stay pumped up. Correct?