This is really getting me down. The version 6 will let itself be formatted by Lido, but the drives don't work for anything than a small copy, either on the IIfx or the Quadra. Termination is on on the SCSI2SD; it's the only SCSI device. HD SC Setup will detect and attempt to initialise, but verification fails after about ten minutes.
I've tried with and without molex power - no difference.
Surely the issue isn't the SD card itself? It seems to be close enough to working that that's not the issue, but I guess it could be? Might go and buy another. It was a post office cheapie.
Other alternative is to put it in an external drive, make sure the termination is good, and try that.