Just writing that down so I don't forget.
I saw a celphone video of my uncle a few years ago that was really impressive.
my relatives probably still have that video saved somewhere.
He did 13 pullups, nice and slow, all the way up, all the way down,
relaxed, no visible strain, no muscle quivering.
I'm 55 y.o. and can only do about 7 pullups right now.
If I worked on it, I could probably get to around 10 pullups in a few weeks.
But energy is valuable, you need more food, more sleep, if you want to be stronger in that way.
So I'm not going to do that unless I can see how it benefits meditation in some way.
But I am really impressed by my uncle!
He must have very consistent, daily training for many decades to be able to do that easily.