MSD yay or nay

I teach Fuel Efficiency classes. I filmed the 1st one-day class. Below is a link to Ignition Segment 2 of 3; it's about 40 minutes long (the entire Class comes in around 7 hours & 11 minutes). I don't even mention MSD (or similar products), but instead focus on something called Peaking Caps. I don't share this freely on YouTube (which is why it's just a link to my Cloud), but am offering it for free to my FABO friends.