Are lats pretty much determined by genetics?? becuase i train my lats pretty hard and it seems that i just cant get them to flare out at all... or is it just a matter of getting yoru bodyfat low to see them?? get back to me if anyone has any tips or have gotten good progress off a certain exercise.. I know pullups are the best but man i dont know if im the only one but my shoulders go through hell when i do pullups i get pain in my right one