An old timer's offset advice flipped my whole setup

Last week in Dayton, a 62 year old retiree stopped by my machine and told me I was chasing zero clearance all wrong. He said to leave a .0015 inch offset on the finish pass and let the part settle, not fight the spindle. I ran his way on a batch of 40 aluminum brackets and my surface finish got way cleaner, plus I stopped burning through end mills. Has anyone else been told to back off the perfect number and got better results?

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