We had one in for a C of A about '71 or '72. IIRR it had Cirrus engines. With gluing ptoblems the next C of A was going to be big and expensive and the operator was ( I was informed) involved in a bit of people trafficing. He parked it in a field a couple of days before the cert ran out and the 'cows' ate it. Damaged beyond economic repair, so he claimed on the insurance. Looking at the photos, I suspect the cows were equipped with an axe... Dunno if the insurance payed out.
Our commercial pilot said it handled very nicely on test, but the Miles brothers were know for their good control harmonisation.
DW