Freezing AD2 multi-track drums after exporting to stereo track to save CPU?

So... I've got an AD2 multi-track drum performance mixed using a bunch of plugins on individual tracks and busses for EQ, reverb, dynamics, etc. it's leaning on my CPU pretty heavily. I'm thinking of exporting the drum performance to a stereo track and then importing it back into the project to continue building on top of it with the rest of the song. BUT, I want to preserve all the original tracks, routing to busses, plugins, etc. as the original "source" material in the project so I can go back to if needed.

If I freeze the original AD2 tracks with all the CPU-intensive plugins, is that the best way to preserve the original tracks so I can go back to them if I need to, but also take them out of the CPU equation? I'll use the stereo drums I exported to free up CPU for continued mixing with plugins on other instrument tracks, vocals, etc. Thoughts, ideas?

Thank you!
Billy

Thanks scook! I'll go this route.