Good idea Miriam. I might try another OSMG. This one was very sweet and amusing (and even asked me if I wanted to take over his shop, since he wants to retire...) but he was totally blase about the belt tension thing despite my trying to ask politely for a definitive answer. I didn't want to pester or push him on it. But you are right, it is really probably something one has to learn by feel.
(Though I still think hanging 100g of almonds and measuring deflection might be a good starting point... ;-) Or cherries? Then later we could sow the cherries?)
