I will say one thing about SC, Bettinardi, they make works of art, you can putt with, better or not..
I don't know much about the properties of one metal over another as far as feel, but if SC has found some blend of Stainless that is different, because I had a Futura Long putter and it did have a unique feel. Others SCs I have tried do have sort of a "tuning fork" type of feel when I have demoed them that is a somewhat sharper, crisper, than others. I don't know if there is some magic frequency, but only the original Pings I have tried elicit that sweet pop. Maybe there are others, but I don't really try to change putters. I have 3. A Ping Darby F Wrx, Carbite ZG, and a Liquidmetal Anser clone, and a Ping Anser I found in the parking lot of a movie theater. (It wasn't claimed in 30 days, so they gave it to me.)
Whatever the case, the common thread is confidence, if you don't have it, you might as well be putting with a pop bottle tied to a broom handle.