I've been running the Speedmaster master cylinder with my stock single disc wheel ever since. I never had any further issues/problems with it, but it will be interesting to see the difference with the dual discs (it better be noticeable after all this). A number of different life events (and a whole heap of laziness) conspired to prevent me from finishing the conversion. It's warming up around here and the TBS wheel has fresh rubber on it and is ready to go. Should be able to mount it up in the next few weeks.