What is the rule on how tall a knee high boot should be on you? What's too high? I like trying on boots (not that I need any) but I'm realizing that it's hard to judge. Most knee high boots hit about 1-2" below the bottom of my knee cap. This is a little higher than the widest part of my calf by about 1/2-1". It seems like if I size half a size down from my normal size, the boot can be a much better fit but the height is still the same.