I agree with the previous posters that we can get used to either way. I usually prefer tip up carry myself. But that's with knives no longer than palm width, ~4", and for carry at waist or below. If the knife's longer than that, or carried chest high, a tip down carry is easier for me. The reason is that my thumb is closer to the Spyderhole, thumb stud, slot, etc. on a long knife, and on chest high carry (shirt/vest pockets) it's awkward to pull out a tip up knife. The guys I know that prefer tip down carry don't have to reposition the knife as much as you might think. They seem to drag the knife on the edge of their pocket, which pushes it into their hand. Let me see if I can describe it. Assuming strong side, back edge of front jeans pocket carry for this example, they pinch the knife with index finger and thumb near the blade pivot, with palm facing in. As they pull the knife part way up, they push it forward against the front of the pocket and twist to a thumb on top grip. Their grip ends up being virtually the same as my tip up carry draw, with the knife held sideways in the hand, and the thumb near or on top of the blade pivot.