Bloodsong.
4: "initvalue is actually the value of the memorized state.", Bloodsong, I don't understand what you are saying here, what do you mean by "memorised state"? Changing the value of a channel, then saving the cr2 does not alter this value, and altering the value in a text editor does not seem to change anything.

12: A secret cr2 manual, WOW!!! Wait whilst I put my Commando gear on, blacken my face, and find my grappling irons.

15: I'm a bit lost on this point too, I had a look in the P4 Nude Man and found one place where the value of "interpStyleLocked" is "1", it's in the "geomChan hipGeom" channel, it seems to be something to do the blHipNoGen.obj, if this channel is un-hidden the dial makes the bit of the hip where the genitals fit disappear, but how this is actually working is beyond me. It's quite intriguing I've never come across "geomChan" before, can it do other things besides hide a bit of geometry? Where can I read up on it, is it in the cr2 manual you mention?

Jaager.
5: I never noticed that before, I can hide a joint channel by editing the cr2, but can only hide a morph channel from a pose file, strange! Also it was necessary to unhide the geomChan mentioned above by a pose file.

9: You say "9. TS of 2.5 will jump 5-10-15-20 as you turn the dial." Well I must revise my statement slightly. Setting a tracking scale for the yrot (Twist) channel of Posette's left thigh to "2.5" will defiantly result in the Twist dial moving in increments of "2.500" (it is necessary to click on the dial to see the exact value otherwise Poser rounds the value off to the nearest whole number)... Pause whilst I put on my pedantic hat, pencil a chevron on my shoulder and say in my haughtiest voice "And after all Posette's left thigh was the subject of my post". On the other hand if I change the tracking scale of the "targetGeom RoundFace" channel in Posette's head to 2.5, nothing seems to change the tracking scale is still 0.016176. I don't want to jump to a wrong conclusion, but perhaps joint channels interpret the TS literally, and morph channels do something else (though what I have no idea), all I can say with the confidence of empirical knowledge is that my statement is correct for Posette's left thigh.

Thank you Bloodsong, and Jaager, for yet again shining a bit of light into the darkness of the void.