I ordered a pf940c from glockstore and the M4 hole on the jigg was out of spec, got an rma from Polymer80 today and after checking yet again, the m4 hole is out of spec. The problem is that the M4 holes will not line up with the locking block and when trying to insert the pin, it taps against the locking block. I took my time to drill them and every other hole fits perfectly except this. I don't think I will get another rma so at this point im just going to jury rig it together in hopes that it works. I'm in too deep since I've bought ever other part I need and cant return them at this point. Has anybody else had a problem like this and have a solution? Right now I'm planning on inserting the locking block all the way, setting the other 2 pins into it and drilling a hole through the lower so that this new one lines up with the holes on the locking block, that way the pin cant hit up against it, then I'm going to fill the excess space with epoxy to keep it sturdy. How does that sound to you guys?