So if I get this right you're advising me to format my drives and install the developer images on BOTH the drives?

(otherwise one drive would contain the developer build and the other the consumer build. Would this be ok to mix the two?)

Riocar 10gig (for now) S/N : 10101747 amber
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Riocar 80gig S/N : 010101580 red
Riocar 80gig (010102106) - backup