Hey Ben, can you make a video for Mid Back just like you made oke for Lats (PS I don’t know how to train spinal erectors, my lower back pain doesn’t allow me to deadlift so that particular muscle group in my back is lagging behind)
Dont do Preacher Curls with low reps and heavy weight, do it 12-20 Range with moderate Weight. And u can also not stretch it to the point to be flat, thats it.
given that I believe it’s appropriate to train all muscles through their full lengths, I think it’s an irrelevant consideration in the grand scheme (and that goes for all muscles)