Ive taken a new perspective on this ..
Ive tried saws from all the famous internet porters minus scott kunz..some ran great..some were average on a good day..some are owned by guys that the thought of them actually cutting wood is scary...they make me nervous just to watch.
I have a 346xp that has NO port work done .. just a gasket delete , muff mod , timing bump and an unlimited coil..it will take some "ported" 50cc saws to school and be neck and neck with others...it cost me 2 hours of my time.
I feel like i pissed alot of money away.. but i learned a few things along the way..ive spent 300 dollars on way worse things..and after mike lee ports me a 660 ill probably never spend 300 dollars again to have a chainsaw ported..although if i encounter a saw ported by scott id love to try it.
I figure if i get a saw ported for 300 dollars how much of that is actually from the port work itself..i think a majority comes from the muffler mod and comp increase from the things ive tried..so for example if i get a 30% gain in cut speed 20% of that i could have achieved myself so i paid 300 bucks for a 10% increase..maybe 15%..nah..not this dude anymore.
I like when hedgerow said " its the indian not the arrow "
To each is own.. Just my humble
experienced opinion