yeah that's what i meant with 10x, like it's +1 on the exponent, if base is 10.
but i'm guessing what others are thinking, hence the question.
The problem is that 10x appears to be a linear scale. It could mean 9.5x to 10.5x if it's supposed to have 2 significant digits. Or it could be 5x to 15x if it meant to have 1 significant digit.