We needed max performance takeoff at TGU in the 757 but we never held the brakes to max power. The procedure said to do it but spooled up and a simutaneous brake release with max power didn't scare the passengers to death wondering why the whole airplane was shaking. We might be talking about 50 ft difference in takeoff distance versus scaring the crap out of everybody for no reason. After a 4 ft fence at the end there was a 70 ft drop off into the valley so it was like taking off from an aircraft carrier.