Id be interested to get folks opinions on this as well. I've a 550 Pro that I still use for the steeper parts of my property - oil says 50:1, Victa says 25:1 - I've kinda camped in between most times
I combined a full synthetic with a mineral 2 stroke as I heard both of them have their pros and cons - but assuming your oil is decent and the Victa's are modernish - unsure if there's a best practice? But welcome seeing what others think/do.
