Restricting the number of fingers used for pull-ups, such as using only four fingers, significantly reduces perceived strength and connection to the lats.

“then I moved to three finger Pull-Ups I mean it's an order of magnitude harder it's crazy right”

“then I moved to three finger Pull-Ups I mean it's an order of magnitude harder”

“and now you say Okay Peter you're not going to get to use your whole hand or your thumb just use your four fingers yeah actually that gets a little harder”

“maybe about a year ago I started experimenting kind of like training sort of the way that rock climbers do where you're using only finger strength and um what blew me away was how much weaker I felt all the way through my lats when I would restrict the amount of fingers I could use to pull up”