I believe Burman built the Norton transmission also, but it was a staggering amount more. Too much for an already expensive single. So, Burman could build great transmissions, the Comet model was built to a price and unfortunately, it can show. I suspect they are fine for the street and a bit of crunching and a long lever throw is OK. On the track a false neutral will loose you a spot or a race every time.
David