DoN, I'm hoping that you're still out there, because this one is for you!
I'm resurrecting this ancient thread, because I am certain I remember you and others referring to a previously well-known procedure for modifying a 3b1 to accept a 2nd simultaneous hard drive.
I'm to a point where I would really like to try this on one of the several 3b1's that I've acquired, and I would also like to create more uniform documentation procedures for it on my MightyFrame.com website, as well as YouTube channel, once I muddle through it myself.
Would you be able to point me to these resources?
All the best always, DoN...hope you are well...
And to anyone else who may have it...thank you also!
Best,
AJ