Hi Sean,I do have three 240's at home and my sons both have one each.I am fanatical about the 240 and the SSS even at my age and apparently there is no known cure.
Do you have any pics of the Z's please.
It IS a virus (and not age related) but 5x is being greedy
.I hope we can meet so I can show you my photo album of the Z's in Kampala and Nairobi 1971,1972 with one particular shot of Jean Todt at JinJ Falls.