DF, I have not been able to turn a glock trigger into anything remotely similar to a 1911.
The best triggers I have made have just been spring changes, polishing, and in two cases I used the LS titanium strikers. Just polish the crap out of all the contact points with a dremel wheel and polishing compound, maybe replace the striker with a titanium but polish that as well, then buy some "competition springs"
wolfe