Hank,

Use your RB real drum count in.

Simple. Do your tracks in RB. Export as stereo wav. Open that wav in Audacity and make an mp3. Send mp3 via email.

He opens mp3 on a track in GB to use as his guide track. He will copy and paste the drum count in from that on each track he records and sends back to you. His tracks can be a single mono or stereo exported wav depending on what he recorded.

I use transferbigfiles.com - it's easy and free.

You will then import each of his track wavs into RB and line them up with your original tracks using the count in.

Very good advice on watching the levels.

Have fun.