I have got it working more reliably with the 1.3 version of AMI-Back and not 2.0. I have tried various version of the software and the latest (2.0i) seems to be the best. Right now it will run backup perfect one time or three consecutive runs and the fourth may fail. It fails right after the backup finishes.
I found that PFS seems to be better than SFS for backing up and programs like wayfayer has crashes more often, perhaps because of the smaller files.
I have many hours into this and hope to get it working at somepoint. Any suggestions are welcome!