I just finished up an X5 4.6is and I used 106 as a finish polish via rotary to bring the gloss up to a maximum finish. I then washed all the resiue off and used ZAIO via pc to add as a base and the gloss and wetness is superb now. Works perfect over 106, but I normally do a wash just to make sure the 106 oils are all off, so there is proper bonding.
I will try to post some pics tomorrow.