AudioSnap Radius Mix Advanced mode

Does anyone have any recommendations for using the Mix Advanced  (Izotope Radius Mix Advanced) mode with AudioSnap?  I have found the other modes work fine in most instances; but when I use AudioSnap on my high-end acoustic guitars, I get all sorts of artifacts. I recently got the sliders in the advanced mode to give me a pretty cleanly rendered track. Unfortunately, there seems to be no way to save a preset. Is there some trick to allow that I may be missing?  Also, has anyone done any benchmarking to see how those settings in the advanced mix mode best work with other specific instruments or mix situations?