Thanks for the info, gents. I will have to go check and see if that gas station still has ethanol-free gas.
On a side note, I'm a firefighter and our department buys VP pre-mix 50:1 for our K-12 saws, chain saws, and handheld groundskeeping equipment. This is due in-part, I believe, to the VP fuel being ethanol free. Not to mention it's premix, so it's basically firefighter proof