MCW
Somebody's talking crap here & it ain't the tree!
Actually many Poulan saws come with a full skip version or Oregon 91VG - it has double shark fin bumper links between every cutter. It's nasty stuff. But if you take the time to grind off the shark fins you get full skip chamfer chisel, which happens to work quite well on pole saws.
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You only ever see that skip LP chain come fitted to cheaparsed saws. It's probably because they don't have the grunt to run non skip
The double shark fin chain is technically called "Guard Link" chain as opposed to the single shark fin type chain which is called "Bumper Link".
You are correct on that, I emailed him asking about a 3/8 conversion on my 261 and he says this:
8 tooth .325 wont cut good at all. you need to switch out your .325 gear for one of our 3/8 hot rod kits for the MS261 it will cut twice as fast
Isn't an 8 tooth .325 about the same chain speed as a 7 tooth in 3/8? I had since found a .325 8 tooth Stihl sprocket to go on my 261 and love it, although it obviously loses a little when you're burying the bar, not rocket science here I just don't lean as hard.
Quite frankly he is full of sh*t with this comment. A 261 has more than enough torque to pull .325" and an 8 pin with authority - I've run that setup in our hardwoods which really give saws and chains a workout. Although with a 261 he was probably running a 42" bar so he could be correct