hey another sheetmental troop. how ya doing. I'm @ pope right now. working on C-130's and A-10's. I think that low speed/heavy feed thing is a rhyme they tought us back in tech school. I still have to tell the new kids why they keep smoking drill bits and can't seem to get one hole through their work sometimes. you always know the sound of the drill just spinning at top speed and the look of frustration that goes with that work hardened stainless! they learn it pretty quick.