P220s are my favorite Sig & yes, they are excellent, inherently accurate pistols. Early W. German .38 Supers have rolled slides, alloy frames & heel mag releases. The last of the .38s (early-‘90s) have machined slides & frames (some with rails) & conventional (US) mag releases. Surprisingly, between the two, the later models come up for sale less often than do the early, heel-release models. It’s worth mentioning that way back in the day, P220s were also chambered for the .30 Luger & the 9mm Steyr (9x23). Those two & the .38 Super are the only firearms that I would ever consider moving a P7 or two for & if ever such a move came to pass, the first place the trio would go is to the range.