well I did mention 20mm's. Not 37 or any other gun that had been developed for buff dropping. And yes, I do believe that buff crews started really soon to shoot cons, especially those who attack from 6. But then the speed works for buffs favour. But when it's normal routine that with every plane you have the best chances to drop buff is by starting to shoot from D9-D8 and stay at D8, there's something wrong.