Here's how the chosen cap values work for me.
Lo Cut:20-25-30-40-60-80 Hz
Lo Boost: 30-40-60-80-100-240 Hz
Hi Boost: 1-3-7-10-12-18 KHz
Hi Cut: 5-7-10-12-18-20 KHz
Now, the values may not correspond exactly with the desired frequencies but as far as I can hear it's pretty close. At least close enough for me!
It would be cool to measure it at some point, but I don't really care too much. The above numbers represent my wishes based on my experience regarding general use and some problemsolving within mixing and mastering.
I made my estimations from taking the original values and just used all four methods of calculating to land where I thought I would land. And to my ears I'm pretty damn close. I'm not absolutely sure about the Low Attenuate frequencies but they work pretty well as they are and then I'll just leave them. Besides, the eq is very wide in it's operation so it's difficult to say. But I think I got the exact functionality and usability I wanted out of a master eq.