I figured I'd post a couple pics of my plugs since I waited a little longer than I should have to change them. I could lie and say I was a perfectly responsible owner and changed them at 45k miles, but instead they had 58000 miles on them. I find it convenient that I had my car in to the dealer with 43k miles, and they didn't do them then, or say anything about it, but oh well. They all were very uniform, which was slightly re-assuring, but I'll let the pictures do the talking.
I also didn't really notice an increase in power or how it ran after the change, but I think I'm also due for the fuel injector reprogram or recall. I feel ever so slight hesitations on normal driving sometimes, but have never gotten a light or anything. Crank times are getting up there too so maybe a second HPFP as well.