I can't compare the two, but I recently put on Murph's lower pegs and love them. I'm 6'2" 34" inseam and they were exactly what I needed to reduce stress on my knees and some pressure on my backside. It took a bit of adjusting to get the brake and shifter levers correct, but all in all it was only about 30 minutes of work, just don't be afraid to adjust them all the way to get what you like - you have to adjust them somewhat or it will be very difficult to shift / brake.
I also have size 12 boots and while I'll be the first to admit I'm not overly aggressive, I still lean far enough to barely have any untouched strips on the outside of my tires, and I've never hit my foot. It may be I'm slightly pigeon toed so my feet naturally point in. I didn't install the feelers from my stock pegs and I'm sure they would hit if I did.
Like any mod, you'll either love it or not and it does take a bit to get used to. I did bump them a few times like clogan, but after a week I got used to the new position and I don't even think about it anymore.