For some time, years rather than months, we have been finding particles on the deck, just abaft the mast. (see photo). they appear after raising and later lowering the main (fully battened selden cars). The particles are hard, non-ferrous I think and vary from about 0.5mm to 3mm, and are irrregular in shape.
Next time we raise and lower the sail we will observe carefully and try to determine the source.
Meanwhile does anyone have any ideas?
I have tried to attach an image but to no avail!
M