My 261 came home running WOT 14,300, tuned by the dealer. I ran it that way for a couple months, there is basically no difference in the rpms, between it and the 346xpne. The limiter wouldn't let me crank it down under 14k, I talked to the dealer and he states the 261 is designed to turn 14-14,300 in its stock form with no issues. It's exhaust note makes it sound like it's turning more. I removed the limiter and fattened mine up a little, running it at 13,800-13950 and imho it just outcuts the 346xp. I'm in no way bad mouthing the 346 it is a fantastic saw, it's power band is totally different than the 261's, I find you have to keep the 346 wound out to get the best cutting performance, pull it hard and it falls off, the 261's power band is from the bottom to the top, much wider, screams at the top and has torque on the bottom.
I'd like to get the 261 ported, but want to make sure it doesn't mess with the power band it has. I like the idea of a saw it's size that would cut with a stock 440.
I know the OP likes his rpms, this saw leaves nothing on the table as far as rev's go. There isn't any noticeable difference in trigger response either. That is one thing I loved about the 346 when I first bought it, it spooled up quick, the 261 does the same thing. I like the quick throttle response when limbing with both saws. The bigger the wood you cut the more the 261 shines, in little stuff it's a coin toss.