QTR-Quadtone RIP

I'm coming back to Eboni6 after an attempt to restart my darkroom career. Not quite a failure, but certainly not a smashing success either!

I have new carts for the 2400 as well as the inks, just trying to make sure I have my head straight before I start filling and replacing.

After reading Paul's various documents on the K3 printers with the Eboni/HP combo, I think I want to set up my 2400 with a straight Eboni6 approach and no HP inks.

1) Would there be any problem with simply filling the unused C and LC carts with the yellow dilution just to have something in there, or does that matter?

2) I plan on making a profile using Paul's "EbHP13-HPR-Eb6.qidf" as a starting point, removing the linearization numbers, printing a new 21 step test and reading that with a densitometer to relinearize. Does that sound like a good strategy?