I wonder if its a genetics thing. Like some people have a better mind to muscle connection or just use the fast twitch muscles more than others. Bro i dont think i was ever as sore in my life as in i was after a crazy high rep chin up day...my god lmao
genetics most definitely plays a part in muscle development, some people just respond better to working out in general, regardless of what they are doing. hahahaha chin ups are another great one lol. I'm always my worst after leg day, walking into work like a cowboy with bowed legs hahaha.