Hughes "retro fit" lifter not pumping up!

Obvious imperfection aside, those lifters look like they were machined at different places, or on different machines.

Those lifters are expensive and that big of a mistake shouldn't have happened. Hughes quality control has become null as the company gets larger. Had 3 bad valve guides on a set of RHS heads. 2 like an hourglass and 1 like a barrel.