One day a buddy of mine who lives in Switzerland grabbed a handful of genuine Glock 3.5 lb connectors and submarine spring cups, stuffed them into an envelope and mailed them to me. (He said he sells them for $6 ea. and still makes a healthy profit!)
While the spring cups make a dandy addition to my underwater arsenal (but that's another thread), I thought the 3.5 lb was just too light and took it out. I've been thinking of trying to change the angle in the little tab to see if I could increase the trigger pull slightly, maybe to 5 or 6 lbs. Luckily I have a alot of them so I can experiment, but in actuality I really don't like Glock 17s very much (too much grip angle) so I sort of shelved the whole project.
Of course, now I'm stuck with a whole bunch of these little doohickies that I basically got for free. [:D]
(No, don't even ask! [:P] )