Hi kalmos, the 55R is a well proven saw, you wouldn`t go wrong with it. I threw in a vote for the 351 because I think it`s as good as any of the other saws listed there and it weighs less and has side chain adjusting. Not huge but nice to have. The 351, 2149 Jonsered, and 346 XP use the same bottom end components, the important durability components. This was first pointed out by our friend Mr. Greffard, saw builder extraordinaire. The main differences being open transfer ports on the 351 and 2149, vs closed ports on the 346. Open ports apparently are capable of slightly less performance, but the biggest difference comes from the port timing. The 351 and 2149 have more tractable powerbands which is probably right up your alley. Russ