You could still WBTB if you wanted. My WBTB routine consists of getting up, going to the bathroom, and laying back down to WILD.

That's something I forgot to touch on.

If you wake yourself up too much during a WBTB, you won't be able to fall back asleep easily enough. Sure it's good for awareness, and that's why a majority of people recommend doing it, but if you can't fall asleep then you're SOL.

I provided my solution to the WBTB issue, but some more experienced WILDers actually begin their attempts mere minutes after waking up. However, you really need to have a strong sense of awareness to do that.

Beside that, MILDs are pretty awesome, and I don't want to dissuade you from pursuing proficiency in that technique, but WILDs aren't as time consuming as people make them out to be.

Either way, what you decide to do is your choice.