On Mon, Oct 17, 2016 at 02:32:31PM -0400, Mike Stein wrote:
  No experience myself, but FWIW several Cromemco owners
have used David's
 unit successfully with Cromemco's non-standard whole-track-at-a-time
 controller and have said good things about his willingness to work
 with non-standard formats.
 (It's also cheaper, but apparently not available at the moment,
 unfortunately).
  
More are on order so bare boards end of the month and assembled hopefully
in a couple weeks more.