Great descriptions! Lately I’ve been working on the (pardon me, I couldn’t find a use for them) distal interphalangeal knuckles, just hanging from my finger tips. Pretty much all the good climbers at my gym can do that with weight added on a belt so I’ve still got a long way to go. But yeah I used to lift pretty heavy and this was pretty much impossible before I started practicing, just seem like totally different parts of the body although they’re all in the hand.