High quality lifters???

There's a big difference in "hole" and a surface imperfection. Any surface imperfection can give you problems during break in. You also should be turning the engine by hand before the pushrods go back in, and verifying that the lifters are spinning in the bores. I have heard about some ground without the proper taper, so they dont rotate..That too will cause failure. I've never seen them, but I have heard of lifters with a small oiling hole in the base of the lifter. It would be a pinhole, nothing large, and is used to feed oil directly to the base of the lifter.
If you see pits or defects in the base surface, send them back, and get replacements before you install them. There is currently only one hydraulic lifter manufacturer in the US, all others are offshore, and quality is marginal at best even with the US versions.