I was taught back then by a couple of the pros to do that. Bring the bar up and raise the elbows so your triceps are level with the floor. It gives you an incredible pump and peak. Your biceps are ultra sore after one set. I still do them this way and dumbells sometimes. I show others and at first seems weird till you feel how much your biceps contract. He was using allot of weight, most no way could do those. Beforee saying its wrong try it. You'll feel it. And how in the hell can anyone on here say thats wrong or horrible when you have seen his arms. Just cause you have never seen it or done it, don't say anything. And I am pretty sure anyone who says it is wrong has sub-20" arms.