Back on 'topic', it seems that many missed what I see as the true 'inovation' in these tools...the ability to 'curve' the body with thread tension after you mount them to the hook.
I've already figured out a way to do it with a needle, but the concept itself is a solid one.
As for an extended body on a #22 mayfly? Easy, just get some varigated thread (I use some old Gudbrod 'Classis Twist' I still have left over), and use that to 'furl' an extended body.....but if you use a #22 hook, and add an extended body, it ain't a #22 anymore...so why not use a larger hook tied conventionally and hook the fish better?
It Just Doesn't Matter....