I just installed a Fulcrum trigger system on my 23, what a difference it makes. They're not cheap, but it's like going from a Geo Metro to a Bugatti...here is a link.

http://www.brownells.com/.aspx/pid=27178/Product/FULCRUM-TRIGGER-SYSTEM-for-GLOCK-reg-
_________________________
He who joyfully marches in rank and file has already earned my contempt. He has been given a large brain by mistake, since for him the spinal cord would suffice.

- Albert Einstein.