Cool. Just a couple more suggestions, some of which have already been stated.

It's such a minor detail and I don't want it to bog stuff down, but ribbons on the kite lines at about 20 feet up have a few advantages.

One, you aren't likely to forget your ribbon, once it is on your lines, it's part of your equipment. I am oh so likely to honestly forget the arm band, that I bet I wouldn't have it one most of the time out of bad memory. I see us going thru a larger number of arm bands (lost, forgotten) than ribbons.

The ribbon can be also be seen from a further distance and from every direction, as well.

It might be advantageous to just focus on EB for the first couple of months, in terms of the signs and the instructor watch-outs, to make sure one area is "kick ass" with coverage instead of several all being "so-so". EB is a "hot spot" for new riders, so to me, this makes sense.

I think a little cooperation from a large number of people is going to go an awful long ways to insuring kiting safety and fun.