IndyIan,
The most common bar-length in Sweden used by pro's is 13" or 15". But there's a wind of change blowing in from the west; I know at least one training-course which use 18". The main reason for the short bars are agility when limbing; Have you ever seen a Swedish logger with 20 odd years experience limbing a spruce with a screeming 346XP? It's like a dance; The limbs seem to hang in the air in a mist of chips and dust and then finally falling to the ground seconds after the saw severed them from the trunk... Then again, the trees are not that big in sweden...
I got my 385 with a 28" to be able to buck a 42" oak and to show off obviously... I talked directly with some pro's at the Husqvarna factory about muffler mods and by opening a european muffler, which has a baffle, you gain ca. 20%, that's ca. 7.5hk on the 385.
I think that increase is when you have the same area on the out-let as the in-let from the cylinder, I'm a bit on the chicken side to be safe, not really equalling the areas...
I got a piece of advice from Husky to use the Jungle-muffler, (5039590-03, 385 or 5037653-02 372) without baffle or spark-arrestor, it should be a better candidate for mods...
About the picture; Yes I normally travel with a photography-crew with 3 make-up artists, 4 photographers and 3 lighting technicians. But this one was taken by my brother
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