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so if magnus doesn't explain drift of a spinner, how did Kuhnemman got reverse drift when operating at higher speeds?

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The one thing I didn't get is that the drift maximisation should occur when the boundary layer separation distance is maximum between both sides of the ball from each other, so it should be somewhere close to the top spinner, but in practice it is closer to the square spinner. So maybe the optimal width of wake formation and resultant reaction force is dependent on maximising the horizontal distance between both points which occurs closer to the square seam/rifle spin seam?

Another thing that can be inferred is, does this necessitates the seam to be upright and there wouldn't be much drift on the scramble seam even if the rotational axis is kept the same as Lyon's. Unlike for dip?

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