This is actually cool. Before I heard about BIAB, I did a lot of stuff in Guitar Pro, and love it as a tool.

In my humble opinion, there is nothing in the world wrong with using Guitar Pro get additional drums sounds, or synths. The drum sounds can be awesome and super techno if you slather them with heavy reverb.

When I am doing house music or heavy metal I often stack heavily reverbed GP drums with RT drums.

Nice work with this.

By the way, are you doing anything with BIAB yet? Have not had a chance to go through your other posts. Am searching now...