Could not have said it better myself !!!!
For me it would not be a big deal if i needed to take the carbs out and clean them myself, i am a mechanic myself and like doing jobs like that every now and then to also know everything is 100% up to spec. So for me the risk of running e10 in the motor is not so big.
If you cant do it yourself, and are all excited you want to go out with the family, and on that one beautifful summer day your e10 induced problems start showing up which causes you to cancel the trip. Trailer the boat x amount of miles to a dealer, getting bad service in the summer period and all in all spending 2 3 days of time and frustration on it then i would also advise to just stick to e0.
Also for me it seems that there are a lot of variations in how soon and how much e10 seems to cause problems for people, as demonstrated here i am almost willingly trying to see where the ''line'' is, while other people try to avoid it at all cost and still run into problems in only a short time.
My honda crf 450 dirtbike has been standig for over 2 years now, it was put away with e5 (e0) is no longer available in the netherlands according to the law) it has been so long that even the tank evapourated dry by now so it will definitly need some love on a short notice.
We will see how that worked out.
I drain the moisture drain plugs on the carbs every now and then+ with frequent use probably means that not much moisture can accumulate in the fuel/carb bowl.
For people that never drain their carbs so that means that there is already a certain amount of moisture in the bottom+ long periods without useage could be a recipe for e10 created clogging i guess.
I didnt do it this winter but i useally get the fuel tank out, make sure its almost entirely empty. And let all the remaning fuel/moist evapourate inside for about 4 weeks time. Then you know for sure all the moisture is gone aswell and you start the year with a 100% clean tank and fresh gasoline.
As i said useally people top it up after every trip which causes old fuel to mix with new, causing that in theory some of the fuel in it might be some x amount of years old already.
I am useally pretty keen on stuff like this and can imagine that people that dont do simple tricks like this might run into problems much sooner, ethanol is a bio product and if theres one thing i learned at school is that in order to get a biological reaction you useally need heat and moisture. Without the moisture heat cant do that much.