I've found the FTP to have a wonderful protective effect on my index, ring and middle fingers, and so I want to develop my thumbs and pinkies in a similar fashion to prevent/mitigate injury if I jam them. I can't really figure out how to do an FTP with the thumb/pinky since they oppose each other, so I'm trying to think of other options. I'm thinking that something like a plank on only the thumb/pinky might work. Another idea might be to to FTP on thumbs only and then on pinkies only. Anyone have ideas/suggestions?