Feature Request: MainStage as a Software Instrument

Question

I want to use MainStage for performing, and I want at the same time to use Logic to record multitracks of my band.
Currently I can do this, but it's clumsy and kind of a pain.
I can either:
A) create an aggregate device using soundflower and bounce audio out of mainstage into a separate input in logic. (This works but causes wild issues with latency, and is super CPU intensive)
B) use two audio interfaces. set Mainstage to the output of one, and logic to record the input of the other. Use a splitter to pipe the output of Mainstage simultaneously into my amp and into Logic. (Downside: so, so many wires ... and places for noise to creep into the signal chain).
Now, wouldn't it just be FREAKIN' AWESEOME, if I could create a software instrument track in Logic, and let the instrument be an instance of mainstage? Better yet, treat it like an external midi track, and have it automatically just record whatever MainStage spits out it's audio interface.
BONUS: if you can go back and edit the midi performance and re-bounce the track
DOUBLE BONUS: clock sync. Let Logic's tempo sync the clock of MainStage, or better yet, let MainStage's tap-tempo set the tempo track in Logic.
I'm just sayin' ... I purchased Logic 9 upgrade on Friday. I'd pay again next week for these features. I bet a LOT of people would.

Answer 1

This suggestion may not fit your needs if you change sound patches with Mainstage during any give song BUT Have you considered playing your patches (keyboards i assume) and recording your band live using just LOGIC rather than Mainstage? You may not be able to use your peddle board to change sounds like you can with Mainstage BUT with a little work before hand you could set up your sounds, use the "I" function to monitor them LIVE and control what comes through the front end via volume of the channels. (And the band recording channels simply turn off the output or send them to an unused output so they don't come through your amp.) It may be too much of a pain and may not work if you change keyboard patches a lot during the songs but if you stick with one sound per song per keyboard this would work great for you.
I've tried this as a solo artist playing along to pre-recorded drums and sent my Chapman Stick (like a guitar and bass at the same time outputting in stereo) into several different tracks, each track using different effect settings. For example I created 3 different "guitar" patches for my melody strings, one clean, one reverb and one distorted. I had them ALL receive the input from the melody strings at the same time BUT only one played at a time because I used volume automation to control which channel was heard. The settings changed on their own using "volume automation" at preset times in the songs and it worked beautifully. The only down side was to have it change my patches (via volume control automation) I HAD to play to the prerecorded drums so "I" was in the right place at the right time for the patch change. Just like playing live to a sequencer. And it took a good amount if time to "write" each arrangement before any performance was possible. But it did and does work wonderfully.
Playing with a live band this would work GREAT if you use the "same sound patch for the entire song" and would require very little pre-recording work to "Write the arrangement" for each song but if you change patches "during the songs" it may be too much set up to make it worth your while. But playing SOLO along with a click or drum track this method works amazing well. Talk about band in a box!
Just thought I'd throw the idea out for your consideration.