I heard about them for years, but held my first today. A guy shooting next to me today had several pistols and I really didn't pay that much attention until there was a break in the shooting for target changes, then I commented on one of his Sigs. He picked it and handed it to me, said "I found it in a pawn shop a while back, no one wanted it because it's an oddball." I looked at it, it was a 220 then I looked at the barrel and saw it was stamped .38 Super. He let me fire a mag through it. I fell in love.
Until today I thought I had all the Sigs I needed, I just found out I was wrong. I sure would like to find one of these babies.