Thanks for all the info and photos P964. Quite a lot of work to get the optimum Bevel Box set up and possibly minimum noise. "Bwitched" did a similar job, without the lapping, back in April 2015 and had good results. You can see why Quaife probably are not taking the time to set the pre-load and gear contact up to close tolerances as it isn't a quick job or easy task. You may be lucky and get one that is close to the best settings, or not.

Another winter job maybe? Very interested in what your longer term and well heat soaked long run observations are like. My bevel box screamed it's way to and from Grindelwald last week, it gets no worse or better and I would like a cure other than better ear plugs.