I want the tire to stay round more than having a flattened center section. It almost squares up the tire, with ridges on each side, like the tire in the thread about Elroy's Extended trip help is doing the same thing as my old tire and new tire is doing. I have two gauges I depend upon and both are made by Slime and they are both a lot more accurate then one might expect of a small tire gauge. I never had a tire on my old bike do what this tire is doing, the old bike tire always stayed round and didn't flatten out in the center like the stones are doing.