I'll second that. My bike always feels a little better,crisper at bottom end with super in it but top end speed (power) is lacking compaired to regular.
Not only that, the cost for a tank of fuel compaired to what you get just ain't worth it..
thats why Ive gone out bought an ignition advancer,twiddled the TPS, dyno'ed the carbs, changed the rear sprocket ,twidddled the suspension,and changed various bits of plastic.
And all because a Guy Buy's Regular
Pete.l