Ain't technology grand?
I use Mobil 1 MX2T in everything across the board now. I use a 40:1 ratio in all the older saws that used to be 16:1. I use 50:1 in everything else that was originally 32:1, 40:1, & 50:1, etc. I have no comparatively high compression or modified saws... yet...., so I found that regular 87-octane gas seems to work best in the saws I currently have. I even have a Lombard AP-24D running at 50:1 instead of the original 16:1 and it runs great. After you get the carb adjusted properly, another advantage of using one of several fully synthetic lubes available seems to be that the engine tends not to load up nearly as bad when you have to let idle for a short while. Also, there is only a fraction of the smoke you would see previously under heavy load FOT conditions.
Being someone who tinkers with old saws and has a great deal of respect for the engineering that went into the "old iron", I am usually the first one to talk nostalgically about the "good ol' days", but this ain't one of those times. Don't sell technology short — it has brought us many good things, one of which is superior-quality, fully synthetic 2-stroke lubricants you can rely on to do the job, protect your equipment, and keep it running reliably for a long time. I am now more concerned with mixing the ratio accurately, keeping dirt, grit, and debris out of the fuel, and keeping the fuel containers clean than I am with what brand of fully synthetic lube I am using.
Al