I did look at the R1s, but think I went with the PS setup due to price, compatibility and having all the pieces together in one kit, if you will. I was looking for convenience and after reading many threads, there were so many combinations of pads/rotors and opinions on drilled/slotted too. You know how it goes, even on the TYF, every one has a thought and there rarely is a straight line vote, even on something as a brake pad. That's what makes this forum so great, but also sometimes hard to make a decision as there are so many products and options out there and first hand, real world reviews from members using them every day.
I liked the way they looked. They still look great and after a fresh coat of paint last month, they look good again as do the calipers, even though they are OEM from 2006. Do they give me any more performance advantage over a solid rotor? Probably not. Again my setup does not stop on a dime. Hard to remember it running on 16s to tell you the truth and whether it ever did stop that hard.
I'm sure the 24s don't help, but neither does 3 tons of Tahoe barreling down the road. I wish it did, but I do have comfort knowing that my pads and rotors were new and coupled with the lower center of gravity and new shocks with the drop, I did make some improvements in that department that should help overall.
Put it this way, no matter which way you go with the brakes upgrade to NNBS or just replacing what you have, it will be new. New on an older truck will still be a win, because it is new, even if all the components around it are not. Just my thoughts on that question.