I have wondered why Glock has not put rails on the subcompacts. Nice work - way to jump in and do a nice mod. Can you design a user-friendly template for the rest of us, that we could stick on our 26/27/(30s?) and cut to a certain depth? I'd pay something for that and shipping would be cheap - no need to pay to ship frames back and forth, owners to be without guns, etc.
Madness is like gravity; all it needs is a little push.