Where I work we have all our ICAR stuff for the insurance companies we work with. Over the years I have went to a number of them, outside of one that pops out in my head they all gave me a lot of interesting info. The one that gave me nothing, still taught me something. That was "Advanced systems" talking about ABS, SRS, Engine management, that stuff. What it did for me was "demystified" it, didn't teach me a damn thing about fixing anything but it did demystify it for me a little. But the last one was that foam class and I thought it was going to be a waste, it was darn good. I had all kinds of foam ideas in my old cars going thru my head as the class went on.
I don't remember how the foam would be used in this hood scoop project though, what exactly are you thinking?