It stands to reason that a plastic tank Sherpa logically makes a more appropriate competition mount, but I love the look of those fiberglass slimline Sherpas.
I really regret off loading my two favorite Bullys :'( and probably the main reason I refuse to part with any other bikes at the moment.
A 325 Slimeline Sherpa it was like a nanny goat with wheels.
Equally missed is my MK10 Pursang, now theres a PRE 78 Open mount that would take some serious beating.