Kbuzbee,
I had my training session with Eton at Cafe Organica today, and I must say it was outstanding. Really the best part is that he asks you bring your machine and your grinder... Which if you think about it makes perfect sense. I think he could have taught me how to pull pretty dang good shots on his commercial machine and grinder in about 15 minutes.
Anyway, for those fortunate enough to be close enough to San Francisco to make this happen I would highly recommend taking a class from Eton. We had a lot of fun, and I learned a lot about my machine, and learned some techniques to make it work better for me.
I pulled several really tasty shots before I left. I learned more about distribution and tamping. I learned that the Pavoni filter basket really is suited to a 1-pull single (I was leaning towards this already). I learned a couple ways around dealing with a HOT machine. I learned that some coffees are more tolerant of heat, and others are really, really stubborn about brew temp.
I learned more than I'll remember. But, the absolute most valuable thing I think I learned is being able to watch what's coming out in the cup, and knowing if it's going to be good, bad, or somewhere in between... And if its bad some general areas to tweak to get it good again.
I don't know if I'll learn to LOVE my Pavoni as a daily machine. Unless you want to use beans that really like high brew temps, pulling more than 2-3 shots isn't possible without tweaking. And since I"m really starting to believe pulling a "real" double (1.5-2oz) isn't possible, then I have to decide if I want to drink really tasty singles, or if I need to keep the Pavoni for special occasions and get a different daily machine.
But learning to watch what's coming out in the cup, and learning what colors and smells to look was what I really needed. And now when I'm pulling shots I have useful experience to draw from so I know if things are right, wrong, and what to do to make changes.
I still have just scratched the surface... But just this knowledge was so helpful

... I'm sure you couldn't tell
