I feel you, but I'm saying its all relative. My arm is worse regardless of the ball relatively
Size matters. The weight of college and NFL size balls is pretty heavy. I have a hard time throwing it far and I lift weights. I think it's the length of my arm, I'm short, and the size of my hand, my hand is small. My brother-in-law who isn't as strong as me has bigger hands, is taller than me and has a longer arm. He can throw it farther then me. I felt like trash considering my bench and pull-ups is way better than his.
Are you short and have small hands?