Thanks for the advice, ever since I screwed-up a replacement set of C96 grips I have always been cautious.
However I have to praise:
DAVID M RACHWAL
PO BOX 932
HILLIARD OH 43026-0932 USA
614-777-0785 614-777-0796 FAX
WWW.HANDGUNSOFTHEWORLD.COM
I just bought my black luger grips from him that he pre-trims before sending them out and they were nearly a drop-in fit, just took 20 seconds of file work near the safety area, then they fit like a glove.
Three cheers for David Rachwal