My Olds converted itself to Metric. Does that mean I get better mileage?

I zig zag to control my speed when I’m skiing.

I recently bought some newly released records that didn’t work on my Collaro. The center holes are supposed to be 5/16 inch on a small hole record, but they made them 1/4 inch. They would not fit on the spindle. I gently used a reamer with a vacuum cleaner to enlarge the holes.

The holes may have been 6mm .244inch.