I'll clarify my quesiton: does anyone "hang off" a 20" bike when cornering at speed? The alternatives to hanging off are staying with your c/g vertically aligned, or "pushing the bike down" to increase the lean angle (which feels more comfortable to me at this point, at least with Stelvios).

I know about pedal position and countersteer (above 10 mph, the bars are actually pointing in the opposite direction from your turn; http://en.wikipedia.org/wiki/Countersteer ). My FS is now faster than any 20" bike I've ever ridden (haven't ridden an Air Friday, but I would like to), so I'm worried about things like head shake, placement of CG.