What are the Q and frequency parameters for the Bass and Treble settings, and which bands are used for which?

I assume that it's the last two bands in the spectrum, the ones on the far right, bands 9 and 10, right? Which one gets used for bass and which one gets used for treble?

Also, what if I were to match the Q and frequency of those two bands so that they were the same as what you were using? Would you then (with updates to the code) be able to say:

if (user's Q and frequency = the same as the Q and frequency I use for bass and treble)
{ Those bands = User's data +/- My data }
else
{ Those bands = Totally my data }

The reason I ask is that I want more than the 6db we get from the existing bass/treble controls but I also want to have the bass/treble controls still work, and I'm already using up all of my other bands now for other corrections.