Hi,
Just realized there are some updates in this thread..
I'm inserting BFD2 as simple instrument track as well.
The only different is after that, I manually insert another midi track and set the midi output to BFD2 and drag it under the same BFD2 folder. I'm using the second midi track mainly for hi-hats. I'm still using Step Sequencer for programming as I find it easier to use than the BFD2 interface.
@Rail : I think the drive speed may be the issue too. I have a few external HDD from PGMusic/Band-in-a-box after few upgrades and used them for my sample drive. I don't think these are 7200 RPM drives.
I'm not sure where I've read it, but I remembered reading something like putting the BFD2 samples to any external drive is better than sharing the same system drive, so I though of just set it up with the drives that I've got and see how it goes.