For perfection, you would have to start with a Sig, not a Glock

I beg to differ, but we all have our fave's. Sold my Glock 17 for a Sig P220 (?), a .45 ACP, fired it once and sold it within two months and went to the Glock 22. My Sig must have been made on Friday.

But after that experience, I will never purchase another.