I bought the Ghost 3.5 ultimate kit and after buying a Dremmel kit and several calls to the company, had everything installed and working on my G23gen4. It was smooth and fast, but I found myself unintentionally double-tapping. That was it for me, and I pulled everything off and converted back to stock.
Then, since I now knew how to totally disassemble the trigger system , I broke it completely down and soaked everything in Ballistol for an hour and then lightly polished/buffed the metal parts with the wire brush Dremmel attachment.
Now this I like! Trigger operates slicker than donkey snot! Kinda an upgrade to the $0.25 Glock trigger job idea.