Wasn't the original European I20 sail plan smaller than the US version?
Think Hobie Fox. Probably one of the reasons that boat failed here.... well, that and the comp tip. Why go buy a boat that costs more than an I-20, with smaller sails so you can go slower than your buddies?
Had that rig been presented to the US better (straight stick w/I20 sized sails) I think the US F20 "might" have gotten off the ground. The time was also better then b/c F18 had not really started here.
Probably what will happen is a "HT" F20 type of class will get started. Between the M20, the CFR and the Eagle... you never know....
2c's