That's sort of what I thought when I started this thread - since it had become clear that the CR2 didn't store the values entered in the joint editor I thought if I knew what it did with those values I might be able to work in Poser [giving me the advantage of seeing the changes as they are made] and then figure out what needs to be adjusted and do the fine adjustment in the CR2 and check to see how it worked.  I'm sort of thinking of it in terms of targeting - try a value and if it is too little then try increasing it and if then it is too much then average the two and keep adjusting until I hit it right.  Not the fastest approach but a lot faster than random attempts