Oh cool. I'll do some testing with this new bit of lore :)

"I recommend setting the scalar for the OpTimes so it will be 1.0 at the desired rotation. So 1 divided by what ever the rotation is. In this example it would be 0.022. That way all the "makes my brain hurt" type math is done at the lowest possible level. You don't have to figure out what 1 / Xrotation / Yrotation is."

A good bit of advice there, thanks. Funny story with that, I had initially been trying to calculate the negative into the actual division formula via a calculator when you said "just add the minus" to scale factor way back in an old post. It suddenly dawned on me to just add the minus to the calculated result in the scalar number field... that one had me stumped for a bit a year ago lol. I've since managed to create 3 axis JCMs successfully following your advice...

As an aside this is pretty cryptic stuff but it's one of my favorite things about Poser. Unfortunately very few people seem to know how to do this stuff, it's a bit worrisome to think that all of this lore might be lost when individuals such as yourself, nerd, depart from the Poserverse someday...

Also the offset parm default value in relation to Animated Centers advice was very useful.

Thanks once again from this grateful Poser tinkerer :)