Well I have be working my chest out and it is getting bigger, But at the time I work it out or the next day I feel fine, If anything my arm hurt more at the time, My form is pretty good up 1,2sec down 1,2sec and pretty straight.
Now for MY BICEP/bicep. for some reason we are have this problem I think, were one arm is bigger then the other, In my case mine are 1/2inch deferents. What is the best lift to make them even.