Are you using drop in or "gunsmith only" parts? Gunsmith only parts are oversized and require custom fitting and are therefore much, much tighter than one size fits all drop in parts.
Of course the flip side is that it takes MUCH longer to fit them, hence the huge $ of custom guns. If you have a file and dremel you can do them yourself as long as you're careful.
Gunsmithing is something i have always regretted not getting into. I've always been pretty good at troubleshooting and dis-reassembling all the guns in the family. I've been the designated gun smith in my clan for about 20 years. LOL
I agree with you about factory guns. My kel tec comes with a lifetime warranty, but it
needs a life time warranty. Some of the parts are very poorly fitted and made of questionable material.
True to their word though, their lifetime warranty is fantastic. I Called them the other day and said, "My mag is popping out 2-3 times a day, i need a new mag spring."
Guy asked me for my address and said, "It's going in the mail right now." They even included a new mag button too.
Not being satisfied with the pressure required to eject the mag even after the new spring was installed, i put my dremel to the mag release button and shaved it down totally flush with the frame. Now to get the mag out i have to put my finger nail right on the button and press down inside the frame to eject it.
The idea of pulling my pistol in an emergency and having a 1 shoot .32 auto freaked me out big time. That problem is 100% corrected now. I love my dremel.
Have you ever shot a 1911 with a short trigger? I LOVE the short trigger. For me it's just so much more natural.