LOL. Minor derail:
My brother refuses to run anything other than 50:1. He's burned up a nice 044 twice, and blamed it on other problems, but come to find out, he refuses to take a tuning screwdriver into the woods. His 261 was having problems idling, which the local Stihler blamed on not using 50:1 oil, so he took it home with them never opening the hood, and switched mix. I was cutting wood with him not long after that, and noticed that it needed new clutch springs. Problem solved.
Long story short, he's always having trouble with his saws, but refuses to tune them when running them, and will only use oil at 50:1 (at least I got him to go away from Stihl Ultra and use a good air cooled scooter oil). My saws live fat and happy at about 35:1 and a just a little bit fat tune, and never have problems other than the typical wear and tear. Makes you wonder...