I understand that the main benefit of the footbox is to allow you to lay diagonally, or asymmetrically, and provide you with additional comfort, but this poses a question for me.

If I utilize the footbox, I will have effectively placed my feet and lower part of my legs outside of the footprint of either a pad or under quilt.

I am guessing with the amount of people out there that seem to be overjoyed with their Warbonnet that this isn't a problem, but it seems to 'de-feet' (I know, lame attempt at humor) the purpose of your pad or under quilt, doesn't it?