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My pleasure. Glad the drive home was ok!
Good luck with the grinder. Do exercise caution if you take the top off and manually wind it finer. Best to wind it til the burrs are touching then back it off a reasonable amount (quarter turn of the big gear perhaps, but ultimately use your judgement and be careful). Checking that the burrs do spin freely. Better to have to wind it finer with the adjustment dial than find out it’s too fine and strip the fibre gear/damage the motor. The fibre gear is a sacrificial component for this exact reason (it’ll strip to prevent damage elsewhere if the burrs bind up), but definitely avoid that if possible!
Great to meet @Nef yesterday and many thanks for the offer of tea/coffee, but the decision to clear off almost immediately proved a good one as I just about managed to get back before my phone/sat nav ran out of juice. Thanks also for the grinder, which is going to get an outing shortly.