What is the best additive
what is the best engine
what is the the best boat
etc
you will get thirty different anwsers to all those questions from thirty different people and they all run their boat different than you do and all have a preference. It all depends on how you maintain your own boat and what you do the majority of the time when you are running it or plan on buying it.
People on this site give out some vey good information. but one size does not fit-all when it comes to boating. It is what works for you. If you are new to boating, don’t run out and buy every additive you see posted on the site and run scared about E-10. Do your own research, test drive the boat. Do what the manufacturer recommends. The more you run it, the less you have to treat the fuel. Just ask some guides that are out 200 plus days a year.
Now if you only spend 30 hours a season with a 60 gallon tank. It’s a different game.
My point is, read the posts, evualuate your needs and then do-it.
This is only to help those that are timid