The Champions are in the NGK boxes and sitting in my tool box because I already planned to compare them should the problem return. I also said under 5 hours because I was too lazy to go check the meter. It was more like 2.5-3 at the time of the swap. I have the exact number in a log out in the garage. I've run it 2 more times since the swap and no issues so far. I only ran it 3 times when I decided to address the rough idle. Not to mention plugs aren't the only indicator of an AF issue. There's no fuel smell, and this thing does wheelies on level grade so no acceleration issues. When there's an AF issue there are typically multiple symptoms. That's just not the case here.
But by all means, you folks can keep hoping I experience a problem to validate your own beliefs. I won't, which validates my decision to never allow third parties to touch my engines small, auto, or otherwise. But one thing to note. I knew the engine had Champions the day I brought it home. Because when I brought it home I ordered all the required parts for the next few maintenance intervals. They're in a box in a cabinet standing in my garage. That's just how I operate. I left the Champions in already expecting a problem, but hoping I'd be proven wrong. I gave them a chance. They gave me what I expected. Now I have to order another pair of NGKs for next year.
But hey, since you all make your living on how often a customer brings a machine in for service, keep right on using those Champions, lol. Same goes for oil. You keep right on using the dino-crap, and I'll keep right on using the "unnecessary" Amsoil. I'm about ready to do my first unnecessary oil change as well. Because waiting 25 hours like my dealer said on a brand new engine with dino in it makes about as much sense as waiting to get shot before putting on a vest.