Thall..no problem. With so many posts in this thread it is easy to get lost in the forest
The saw is less than 12 months old, and has always run "hot" from day one, even cutting wood other than Osage (I posted previously here with that issue). As my first chainsaw I lack experience to successfully diagnose small high performance engine problems, but I suspected something has never been right. I can successfully sharpen chain since it chips nicely in anything except Osage Orange. I resharpen every refill and sometimes inbetween if I have been working on Osage Orange. I also know to let the saw pull/swivel into the wood.
I can only get E10, but always use less than fresh gas (3 to 4 weeks max), good chainsaw synthetic oil, and it ran hot on both 40:1 and 50:1. It was last running 50:1 using Stihl Ultra synthetic with 3 week old gas. Also the high speed carb was at the factory setting and could not be richened due to the limiter. At that WOT was 14,500 rpm - right at the limit.
Actually now you remind me, this has been a constant problem. So I should at least try the warranty route first, although I was getting prepared to pay to get it repaired.