I seem to remember the late 066 magnum with factory dual port being rated at 7.6 hp and 16.5 lbs. I still take a 66 over any other big saw for steep ground felling
I remembered the Stihl saw shop in bovill had a bar shop. I usta collect up about 10 bars at a time that needed trued, and would drop em off there when I was doing stuff with Mark Mcneilly outside of deary.
I have burnt thousands of gallons of sawgas in my time on Earth raping trees. I've switched back and forth from 40 to 1 and 50 to 1, only difference is the richer oil mix hurts your wallet more. Keeping a saw in tune is much more valuable
I buy my stuff local when possible. I can't afford to buy ahead, and when I need it, I need it NOW! The only time I buy on line is to get stuff the dealer doesn't carry such as my cannon lightweight bars and Stihl semi skip chains.
That is about my southern edge, Bertha hill was down there but most of my sawin was in the floodwood state forest, then areas around boville, santa and clarkia
Just because it's new don't mean anything. I rebuilt a 288xp using a new OEM mahle piston and cylinder set and It would only give me 120 psi. After some heated arguments with tech support, they traded me out, and the replacement had 150 psi.
The biggest factor around my area is trying to get parts, wether it's for logs trucks or chainsaws, everything is not in stock and sometimes backordered for months. Heck, it took me a week of searching to locate 3 gallons of 15/40 diesel engine oil of any brand and another 3 days to find an oil...