Yeah I think I'll take the first set back, it's the only one that was different when comparing three different sets of rings.
And that site is pretty cool, thanks! But I could probably have been a bit more accurate when I was measuring but the rings are visibly different widths. So there is a difference. I just measured again and got the same result.
And that site is pretty cool, thanks! But I could probably have been a bit more accurate when I was measuring but the rings are visibly different widths. So there is a difference. I just measured again and got the same result.