*By the way, that falloff orientation bug that you've never had before - you've had it before.  Check RWoman's thumb falloff zones for "Up Down".
edit: see pic

Oh brother...

Hmm...let's see
Joint orders are symmetrical
Centers are symmetrical
Rotations are symmetrical
Joint angles are symmetrical(Subtract the values)
Spherical fall off zones are symmetrical

Golly...what could be!?!

Wait...I know,  you have no clue what you are doing in Euclidean space!