They both came back!
I gave them a short refresher on Newton's three laws and the Conservation of Energy, then I hit them with DWB. They were all ears. I explained how DFCO works and they were intrigued. I had 'em eating out of my hand, I tell ya. Ha ha! I talked about grille blocks, and instrumentation like Ultragauges, MPGuino's, and vacuum gauges. I talked about removing roof racks, spoilers, and mud flaps, which led to talking about aerodynamics in general.
My work/social schedule was insane last week, so I didn't have time to make out a fill-in-the-blank worksheet for the class, or put the finishing touches on the PowerPoint, but it turned out to be a real good class anyway. I hope to be better prepared for the final session next week.
I took them for a short ride in Olivia to show them the SGII in operation, and demonstrate DFCO. When I pulled back into the church's parking lot, one of the guys said, "Oh! You used your brakes!"
Next week I'm planning on giving them links to some websites, and reviewing what we covered the first two weeks. Maybe I'll briefly cover some more advanced techniques like EOCing and Pulse and Glide.