Looking at alfy's frame made me think again about why the OE frames were not built the same way, with the main tubes extending all the way to the rear. It would seem to be a lot more solid than the way Thames Ditton built the originals. When I look at an original frame, it looks as if it was a shop error! Just see some poor guy being told to cut the main tubes to 'x' length, and getting it wrong so they have to cobble up a fix to make due. I know this is a relatively moot point as I have not heard of any rear subframes falling off, but alfy's certainly LOOKS like a better idea! I take it for granted that the axles will clear all frame parts in full droop.