I have an opportunity to buy an SW99 in .45 for $400 with box, paperwork and two mags. I already have three 1st gen P99’s in 9mm with the AS trigger as well as an SW99 in 9mm. I think very highly of the SW99 and in some ways find it to be a better firearm than the P99’s of it’s era (rail type, front slide serrations), thus I’ve always kept an eye out for an SW99 in .45, however I’ve never handled let alone shot one because they are rather uncommon. Is it a disappointment; how does this frame handle .45 vs 9mm, etc.? Feedback is much appreciated.