Anybody considering one of these grinders, be aware that the burrs are very hard to track down. The outfit fiorenzato Italy put me onto quoted $480+gst. Genovese graciously allowed me to compare my burrs to kony burrs which were almost the same, but the kony had a smaller hole on the centre burr. So I decided to take a risk and order some Macap MXK burrs from coffee parts and fortunately they fit. Now to run all my failed roasts through to get them seasoned up!
I should also add that after a full scrape out and vacuum, retention is actually closer to 16 grams. Looks like I'll still be drinking my first coffee of the day with milk