I bought the Sta-Bil Fast Fix cleaner. I have used their gas stabilizer for years with all my small engine gas and motorcycles with good success.
Yes the SB fast fix is good stuff. If you can't get non-ethanol for the blower buy the "blue" 360 both Sta-bil (vs the Red) and treat it every time. It is made for ethanol gas and the marine environment with higher humidity and potential water in the tank
PS, I have the same snow blower and had the same issue 2 years ago....SB Fast Fix bingo......... I wasn't so lucky with my genny, i know run shelf stabilized fuel in my genny because its carb is smaller so smaller "hole" more likely to plug....plug is a full carb and jet clean..... partial run is a Fast Fix......