Quite fair - depending of course on what you got with the A4000.
1571 drives are very fragile, please please PLEASE ship the drives (the spare one and the one in the D) with the shipping spacer (or alternately a scrap disk) inserted and the lever closed!
You must at least stick the disk in and pull it out so that the spring inside the mechanism goes back and lets the read write heads go down. Best just leave the disk in. :-)
I say this, because too many 1571 mechanisms have been ruined already by storage and shipping with the lever open. It's a real problem.
