Correct, it's a crap shoot. I am a 10.5 in most shoes, 10 in Alden Barrie and Trubalance and a 9.5 in all my Vibergs. But again, it's a crap shoot and you should not take sizing advice from the internet.
Finer mesh than the DiskFine from Able? Ordered to investigate.I use a Porlex mini at work set to 4 clicks counter-clockwise from closed. It does generate more fines than my other two grinders - an Orphan Espresso Lido for when brewing with a Hario woodneck and a Zassenhaus Panama Coffee Mill for Aeropress at home or when traveling.
More oils and more fines. With the same grind size as paper filters, I found it to have too much fines. I increased the grind size slightly (equivalent to one click on a porlex mini) and that gave a great result. Noticeably more body without the fines.
I believe Able spun off independent from Coava to focus on the Kone and Disk. They have added a few other products since. I recently picked up the DiskFine for the Aeropress and am very happy with the results. I was hesitant to order because the first generation Kone never gave good results in the cup. I have read that the 3rd generation Kone is much closer to paper filters.