Brett
I dont have the 6th lower on my setup I myself use my 7th string 1/2 raise to get my 7th chord, I had the 6th lower but it seemed more in the way for my style so I removed it
I don't know why this didn't occur to me, because I do it from time to time: double-foot. Left foot on A & B, scoot that right foot over to mash the C. Assuming Emmons pedals. I'd pay to see that with Day setup.
Joseph, I actually use the 6 string lower mostly as a split with b for diatonic movement, minor chord inversions, etc. and not nearly as often as a 7th chord pedals down. Id probably also raise seven if that was it's main use.