The gun i am building is a SV slide with breech faces that you can change. So I running a 9mm bushing barrel for ESP class and a 45acp barrel for the CDP class.
I will also have a 40 barrel fit later for IPSC Limited.
As for the quality of the gun smith in question, I asked him to build this gun because i saw his work on 1911s Spook guns like ASPs. with thread barrels (class 3) and High Powers with beavers that you could bet your life on. Half the gun smiths out there could not mill the sight for an ASP. Race gun builders are talented at what they do. But that does not mean other smiths are journeyman. Like example Novak Baer Wilson Robar and Brown, I guess they could not build a STI??
Ej45