Hey ABC,
Yep I'd go with the Stihl tech on that one.
Personally I prefer to use BP Ultimate with synthetic oil for all my two bangers. Generally you dont use much fuel anyway so the extra cost for the "best" you can buy is a non-argument really. My Stihl 098? ran best Stihl lube and brand name Prem 98 fuel (non ethanol) until someone stole it anyway

Cheers