I think that, in spite of your quest for higher volume output, you might want to put more weight on the consideration of actual quality if you are going to spend the money anyhow. Of course this is all my opinion and not my money either, but I have worked with Anfims, SJ's, Compak K10's and Roburs and believe that any grinder in the Super Jolly range simply produces inferior grinding results. Because of the burr speed of both the Super Jolly and the Anfim ( I know people will berate me, but 700 rpm's is 700 rpm's) creates at least a reasonable amount of heat and extends grind time by anywhere from 3-5 seconds. This also means motor heat. Roburs and K10s produce cool coffee that has not been affected by burr speed and they both do it in a sizeably shorter time. You might notice upon using a conical that some of the finicky notes or problems with souring disappear when you are grinding cool.