High quality lifters???

I bought new valvetrain parts, and cleaned my new hyd. pro magnum lifters and found out that half of the set has a few holes in the bottom??? Really small ones, can´t feel them but visible. We compared to other brand and yes, the same thing, holes. Does it have any affect to my extreme enyrgy cam, or should I ignore them? The speedshop I bought them says don´t worry it´s quite common, he could order a new set, but it would be the same. Is it really so?