I am considering the purchase of my first 1911. I am new to this platform, and I am most seriously considering the Sig GSR as it has all the features that I think I might want -- it is full size, has a light rail, has an external extractor, and is reported to be accurate. HOWEVER, I hear that it is too heavy for IDPA ( is it also too heavy for IPSIC limitted? ) and that some people don't like the feel of the grip safety. My other 2 choices would be a Dan Wesson patriot ( accurate, external extractor, and no light rail ) or a full sized Kimber ( I just don't know much about Kimbers ). I need advise about this. Any and all info appreciated.