So sorry for the delayed reply! It's been a hectic holiday and NAMM season, so I'm just getting to forum posts.
TWA will work with just about any pickup system save for mic only systems. It does work great with piezo type pickups.
If you're into percussive style playing, a contact style piezo will be the way to go as it'll pick up body taps.
Undersaddle pickups work great, contact pickups work great.
Anybody else have any suggestions?