The Swiss guys have got me thinking, are there many Italians who are still in the S116 but not S116* category due to not having tested for L21? I still would expect that the not insignificant amount of L21 in SW Germany, SE France and Switzerland should mean a significant amount was brought to italy by either the Celtic or Germanic movements that linked the two areas.
There are a lot of Italians who are just un-SNP-tested period.
By the way, Meier (the other Swiss guy we were discussing) joined today and is now awaiting L21 test results.