i am by no means a big guy but when i get in the gym i am in a vone. i lift to the pint of muscle failure and i do pracxtice the best form i can with weight i shouldnt be able to lift, but i have no quarles with grunting if the weight is hurting me or if i am puttin in 200%... so please dont laugh at me if i am in the gym doing halkf your weight and tearing at the eyes during reps, because i am doing my best.