wayno: Sir, not sure I'll be much help. Give this a try; go to ghost triggers and he has created for the Glock a trigger that has 60% less travel.
I do not have one but am interested. I found out about it in the gunsmithing section @ GlockTalk. 60% is a lot.
Ruger now has a slim line type. Ruger SR9 10 shot or 17?shot
built under the same thinking as the Glock. Stoeger 8000 made by Beretta but reintroduced as Stoeger.