Mac,
I'm posting for two people here. I use RB exclusively now for myself. My friend uses BIAB exclusively. Up until now he's been using 100% MIDI except for the RDs. He has gotten a new computer and with the access violation issue fixed he's been converting all of his songs to all RTs. He's a guitar player and his material is 100% instrumental so it's nice to have some other solos in there. With MIDI you can use the soloist and do whatever you want. He couldn't do that with RTs so he asked me if he was missing something. I couldn't figure out how to do it without doing it the way you describe. He's decided that he'll continue to use the Ketro for the solo work now that the upper bank issue is also fixed. Ketro Tenor blends in nicely with the RTs Band.

John
ESI Gigaport HD+
Lenovo Turion II /4 Gig Ram/ Win7x64 be
15.6" Monitor
"The only Band is a Real Band"
www.wintertexaninfo.com/BANDS/JohnnyD.php