Love the product! But I do find it tedious to audition RealTracks. Please consider the following -

1) Add a key shortcut for the Audition button in the RealTracks Picker dialog. Maybe have the same key shortcut with a modifier (shift, alt) for the '+' audition button.

2) remember the selected realtrack and reselect it after launching WMP. That way I can remember where I was in the list.

3) perhaps have a mode where double clicking the realtrack auditions it directly.

Thanks for your consideration.