Greg, with all due respect, Bub's/AMA has "scrutineers". SCTA/BNI/ECTA has "inspectors". The "S" word is a tad fancy for my tastes, although if Bub's were to ask me to wear their hat and look at bikes I suppose I could live it it. I'd probably have to do some community service work to regain the "inspector" title when I return to Earth, though.
In other words, I know that Z/ZR will get you approved at a BNI/SCTA/ECTA meet - at least 'til you push the record up over (what's the number -- 260?). I don't know how AMA/Bub's will react, but I'd expect you'd be okay there, too.