Girsan took the world famous 1911S Match and gave it to Noel one of Girsan's competition shooters and said break it, change it and report back to them. Noel came back and said he suggest the following changes: ambi-safeties should be changed to a larger style thumb shield safeties, deeper forward and aft serrations, solid guide rod, thicker front bushing, put a better trigger, clean up the magazine well, G10 grips, fiber optic front sight, extended magazine release, better slide to frame fit.