R boots with the 10.x FIRM. So it's not really irrelevant. As @Lacius stated, you cannot boot into Gateway by pressing R, only by pressing L.
Ah, that's interesting. Except if my system was on 9.2 to start, would it actually boot with a newer FIRM than what I have?
But I get you. I'll update my AuReiNAND and do it that way.
There was one other issue I ran into which would cause a big problem for Themehax - that was, the two seemed to be linked theme-wise, I started out with an unlinked emuNAND and sysNAND both on the default theme, then changed emuNAND to the blue theme, and yet when holding R to boot into sysNAND it also had the blue theme.
Unless that was because of the 10.x FIRM thing you mentioned, in which case I'll chalk it up as a weird anomaly since I was using 9.2 anyway.