The credit there should go to the FastTrack, and I am glad to hear it! Realband only records the digital info your interface sends it. If it is clear and sensitive, you get a better recording; but the A/D converion is where the rubber hits the road (so to speak). Same for any recording software. Once the DAW software comes into play the quality of the recording has pretty much already been determined by the inputs. By the time it gets to RB it is already digital.

Not much it can do to influence the original sound at that point.

Make your sound your own!
.. I do not work here, but the benefits are still awesome