I would still consider a gas trimmer if I had an ethanol-free gas station around me. The closest is not close, and there is too many problems with this "corn-gas" that I'd rather not deal with it. Though if I have to, I use StarTron, no need (less-likely) to replace parts then.
I end up using 1.5 or 2 gallons of pre-mix through the season, between my string trimmer and backpack blower. So lately Ive just been buying the gallons of TruFuel (or whatever brand I can find). Not the cheapest way to go, but it beats dealing with the effects of ethanol. I run my 4 stroke stuff out on the 4 stroke TruFuel as well, I just keep a quart of it hanging around because not much is needed to run them out.
And honestly, if the Stihl carb, fuel lines, etc last 10 years before replacement, I have no problem with that.
