May I suggest to display the MTTDL on a logarithmic scale?
The way it is displayed now, in scientific notation, there are two numbers to compare at the same time: the coefficient and the exponent. If, instead, a logarithmic scale is used, there would be only one number to look at. (In base 10, it would be comparable to the currently used exponent. You can even show it as 1 x 10^x h, where x can be non-integer.)
Thanks, this tool is awesome.
Yours,
Amir