Just sold the last of my older carb saws, 028, 440, and got a 261C and a 462C. The 462 had only been used to buck up a huge maple trunk in winter and had significant (rotten wood) dust when bought. I cleaned it and after running it for a bit did the "retune". That seemed to improve how it ran and idled. Haven't touched the new 261C and don't plan to unless it has running issues, it powers a 20" bar in hardwood with no problems. So far very happy with both saws, I've been running the 462C with a 20" bar and even bar buried in red elm, had to watch the throttle cuz it hits the rev limiter pretty easy.
I expect it will do "just fine" with a 25 and even a 28" when needed
I expect it will do "just fine" with a 25 and even a 28" when needed