lil bit back i did some trading with a bud and ended up with a 1911 that has a breechface cut wider than average,problem is she wont hold a round in the extractor tension test.i did modify one spare extractor by hump so she can shuck shells reliably but still i am wondering who does welding/machine services on slides so it can one side get built up lightly and remachined to spec.as it is with my calipers i mike the breech face width to a dead even .500 instead of .480-.485 that i have measured on other slides.due to the fact its a 7" slide by a maker long gone now i am really trying to save it.any help appreciated.tyia