I am a full time guitar teacher. I often use BIAB in my lessons. Two thing make it frustrating for me to use BIAB in my lessons.

1. Starting BIAB takes way to long to load.
2. BIAB takes way to long to build real track styles. Uncompromising the .wma files in Real Track and Real Drums then compiling the song takes a lot CPU power. I admit my computers are not the fastest out there. But they are 64 bit and have solid state hard drives. I know 64 bit would speed everything up.

The problem for me is I only have 30 minute lessons. I can't spend 3 to 6 minutes of the lesson waiting for BIAB. I often just go to YouTube and find a nice play a long someone has made which is a bit frustrating to me since YouTube is free and I have paid hundreds of dollars for BIAB.
If PGMusic could reduce load up time and track generation by a minute or so it would be usable for me in my lessons. Some styles load a lot faster then others. I'm learning which one I have to avoid in lessons and only if I have BIAB already running in the background.