Thanks for the comments guys. I seem to recall some discussions on another web forum that correct torque was very significant on these two designs. Too tight was as much a contibutor to cracking problem as too loose. I don't believe there was a concensus of "how tight" it needed to be. Certainly other firearms designs can suffer from wrist cracks if the attaching screws, or through bolts, are incorrectly tensioned, but when you see references to the cracks in Ballards and Borchardts as being "standard" it gives you pause. Thanks again for the input. Terry