DavecUK It’s about burr size and throughput. I’ve explained why quite a few times in other threads, search for “burr packing,”.
Thank you. I remember you explained this before, but if memory serves me right, it also depends on the burr cut itself? I remember you saying at one point you compared two different burrs, and one burr took a long longer to grind than the other, even though they were the same diameter.
So I’m assuming that, for this grinder (T64) the optional speed is 800 for the burrs you tested, and maybe likewise for the SSP HU burrs BB is selling the grinder with?