Wide grip chins are the only thing that gives me real sore lats.
What I do differant is I take a wider grip than tblock - he only grips around shoulder width. I also keep my elbows back, he lets them tuck forward. I try and drive my elbows back and into the floor to start the pull. I also take a thumbless grip and keep my back arched. The thumbless grip help me keep my elbows back and keeping the back arched allows the lats to contract with maximal force. Tblock does the opposite of this and holds his knees up to his chest which rounds the back. Lats cannot contract with maximal force when the back is rounded. This is also the reason that with a pendlay row you are supposed to pull the back into an arch as you initiate the pull.
My pullups arnt 100% super strict I admit, sometimes I will swing a little to get the last rep when Im just repping out with bodyweight but I do them with focus on hitting the lats rather than simply completing the reps.
What I do differant is I take a wider grip than tblock - he only grips around shoulder width. I also keep my elbows back, he lets them tuck forward. I try and drive my elbows back and into the floor to start the pull. I also take a thumbless grip and keep my back arched. The thumbless grip help me keep my elbows back and keeping the back arched allows the lats to contract with maximal force. Tblock does the opposite of this and holds his knees up to his chest which rounds the back. Lats cannot contract with maximal force when the back is rounded. This is also the reason that with a pendlay row you are supposed to pull the back into an arch as you initiate the pull.
My pullups arnt 100% super strict I admit, sometimes I will swing a little to get the last rep when Im just repping out with bodyweight but I do them with focus on hitting the lats rather than simply completing the reps.