The BigFoot printing press feeder is the first true sheet seeking suckerfoot for both large and small printing presses. When vacuum on your press goes on, BigFoot reaches for the top sheet. Once there, it pulls back and feeds the sheet through the press, eliminating doubles and misfeeds. The action of reaching out is what makes the BigFoot printing press feeder a unique suckerfoot. Since each foot is controlled by its own vacuum actuated piston, one will reach lower than the other which is especially helpful when running envelopes and wavy stock. So give BigFoot a try. If it doesn't eliminate your feeding problems, we'll refund your purchase price.