Hey Joe. Thanks for the reply. The video of Tom was I think around 2019 or 2020, and yeah I get all the things about trends and stuff its just like you know the thing when you’re a nerd you want to learn everything even though thats not possible. Like when I saw the video of Tom and he separated biarticular muscles and monoarticular muscles that was smth new to me, as you mentioned you hadn’t really separated them, and he mentiones that in mono articular muscles, like delts for example the change in internal moment arm is so small that is almost non existent and basically the entire strength profile is literally determined from length-tension relationship. But because these muscles never truly get fully lengthened (stretched) they dont have that drop off in force in the maximum length they achieve so its more like they stop on the mid rang. I aaked this because this was the graph you had on resistance profile for delt raises.