I have a buddy who swears by Chip McCormick power mags. Has anyone had any experience with these? They're a bit pricey, but if they work as advertised then what the hell. I've tried dozens of "mil-spec" welded bottom mags marked "Colt", and they're all hit and miss with the feeding problems. I've even switched out my recoil spring thinking it was just too strong for proper feeding and ejecting. I'd love to be able to pack my .45 again, but she'll sit in the safe until I know she'll work flawlessly. Any advice is appreciated.