Ok...how about *Shaved* BFG Radial T/As?

The process is called tire truing. I did it for years. We used to true every single tire we sold in the early 80s. Some were ridiculously out of round.

Then tire manufacturers changed the way tires are produced and made truing machines pretty much obsolete. I see zero benefit to removing tread, unless the tire is out of round.

The tread is made out of the same rubber compound all the way through. It is not like you are going to uncover a secret new layer of different rubber that gets traction better. You will simply be wasting tire.

My advice is get some different tires.