I do the stabil thing as well, but am fortunate to have several gas stations in Nelson and Augusta counties of Virginia that sell Ethanol free high premium gas. There is one gas station along the I-81 corridor "Royal" which sells only ethanol free high test. I don't know if the gas is any good, but the ethanol free is good enough for me. I don't worry about the cars so much, but the tractors, weedwackers, powerwasher, chipper, lawnmower, leafblower, etc...... all get the etoh free gas. The generator gets a completely clean out after every useage, the rest get run dry at the end of the season and a gulp of stabil.
Seems like the ethanol stretches the diaphragm in the carbs of the smaller equipment really easily. Bad running- I go straight to new diaphragm, excpept some of the cheaper equipment doesn't even sell that- they make you buy a whole new carb! All the better STIHL equipment has done well. I take more care feeding them gas than I take care feeding my kid.
Edit: And, yes, I blame ethanol for the flaming demise of my porsche 951 R.I.P.