This thread reminded me of another one a little over a year ago:
Mixing Waxes
I had about an ounce left of S100 and Natty's so I decided to blend them together via a double-boiler. Thus producing N100 (name given by RCBuddha) - The final product was good but nothing spectacular. Of course, YMMV.
Most of the product mixing I have read about have been the RMG/Menzerna Ceramiclear product combos or the Optimum/Hi-Temp product combos. I personally have not tried any but it's good to hear that they get the approval of many respected Autopians.
MCA