For what you intend to use it for (I do the same thing quite a bit) I feel that the audio nature of the Audya drums works against you...

When doing mockups of a tune to a sequencer, I prefer to have the drums in MIDI, so if I need to move a drum hit here, a tom tom fill there, or if I want to subtly change the swing value or pocket of say the hihats, this is all possible. With the audio drum loops, not so much.

If the audio loop drums work perfectly for the tune, you are in business. If they work CLOSE to perfect, that's as close as you are going to get...