They may have to, given the reports of problems with them we have heard

Bottom line is, if you use something other than a duplicate of what your primary arranger is, you DOUBLE your preparation workload. Who, in their right minds, wants to do that? If I've GOT double the time available, I've got time to prepare DOUBLE the tunes...

There's no way to transfer all the Audya's audio loop rhythms to any other arranger. You want to work with those, you GOT to have another Audya (or a nearby dealer with a spare!). Little chance of either, IMO...