Well, I'm out of it for a little while (okay, more than a little while) and I come back to find GC has it's own section in the forums!!! I feel like Han Solo after he's unfrozen from the carbonite to find Luke thinks he's a Jedi. Anyway, it's good to be back, looks like there's some interesting stuff going on. I'm going to stock up on the good batches of GC at my local supplier (Autozone in W. Lebanon, NH), and I have a used sample from my dad's lawn tractor going out today. Now I realize I have a problem; I don't know what batch numbers I used.