LEES WOOD-CO said:"Often times I find that many people make up for bad filing and bar dressing with a more power"
Agreed 100%.
Yes, and also often results in bars getting chucked when saws cut cockeyed, and carburetors getting plugged with dust - since dull chains make dust instead of chips.
I had the benefit of working as a Stihl mechanic at several John Deere dealerships. We had piles of bars that customers said were NG. Now, 30 years later, I'm still using them.