I was talking to the Massive Master and he was saying that he NEVER uses multiband compression.
Now mind you he DIDNT say what he does as an alternative.
But with his comments in mind, I havent been using the MB at all and ive been trying different stuff to put the final polish on my mixes.
Like suble eq changes, compressing the mix very slightly, stereo wideners, running the mix through a preamp, etc etc..
Now im no mastering pro, and all ive got are my ears and some good eq, and dynamics knowledge, but ill tell you this....
my mixes sound alot more intelligible than they ever did using a MB compressor so far, and after using the multiband for hours upon hours, and still not feeling 100% good about how the mix got treated, my ears tell me im on the right track....
i know this didnt answer your question, sorry.
But i figured you could maybe relate with the story.
peace.