I was talking to some line cutters last night and they said the 346 will out produce the 365 mainly due to the fatigue factor.
Don't know if your talking exploration/Seismic (Geophysical) or utility lines. There is no real disadvantage for that saw in most areas. Guy could run a 24' if they wanted on the flat ground.
I worked with a utility company in '09 when things were slow. I slashed a bit with it. I had a new 22" k095 mount in my collection from my 357's and I ended up falling mostly pine with it after my mains went in my 372. It was a strong saw stock.
the crew had 16" bars on theirs. I 'slammed it' and put the bar wrench through the muffler a few times. and changed the pill (vent) that screwed me for a while. It was summer and it was pressuring up and back flowing into the carb when I'd shut it off. Sweet little saws.
I had Jonny do me one up with custom wrap and 357 Faller dogs for the north. I never used it unfortunately and traded it.
Maybe another day again.