I too love Sig and their kits. I have built everything from a Four Star Forty (very simple) to a Liberty Sport (very advanced) from Sig. They are all great. Also, the people at Sig are real and bend over backwards to help with a problem if you have cause to call them. It would be an absolute shame if Sig were to go away for any reason. I will continue to support their company as long as it exists (and I exist).