equivocation

I feel like good equivoque can be a really powerful tool but most examples I've seen of it are really poorly done. I feel fairly comfortable forcing decisions regarding 2-3 objects using it (for example tricks where they have to pick one of two coins or piles of cards) but trying to narrow down...

I've always known how powerful a magician's choice trick can be but surprisingly, I do not have a single trick using this method in my repertoire. Where would be the best place for someone to learn equivocation/equivoque/magician's choice? Thanks Guys!