Please post the lyrics so I can read for fun as well as listen for the same.
This rocks - that means you did a great job with the BIAB drums.
Since you've used your combined talents & real drums you could call the group Peebles & Bam Bam!
I think this is ace fun and sounds great.
The combination of RealDrums and real insttruments is a potent one.
Well played and sung.
I loved it.
Might I suggest that you pan David's vocal part at the end, a tad to one side so that it's clearer and doesn't muddy your lead vocal?

Cheers
rayc
"What's so funny about peace, love & understanding?" - N.Lowe