To piggy back on vanark's remarks. I've finally had the sample, gear, and everything in one spot to play with it. Attached are the quick-n-dirty settings that I found I liked in RX. Noise reduction is an extremely sharp double edged sword so be careful.
The gist of this one is that's its largely broadband noise (and constant) which really makes for a nice setup for the learning mode, especially since it's just a single instrument. I specifically targeted the broadband above 2khz since (to me) that was the most noticeable aspect of it. So for a very minor loss in luster, it really just about stamps it out. Best of luck.