I've been snowboarding for 12 years, done many 120+ day seasons, and I'm a certified Level 2 instructor in Canada, have done the course for Level 3, need to take the exam. (There are only 4 levels).
I don't love all your advice.
1. Sure, marketing gimmicks are great, and you're right, it will help a little. Learning good technique will help a lot more. Learn how to control the edge and how to turn the board when you want to turn the board.
2. 30 front and 15 rear is too much of a difference, which means you'll never learn switch, and things will feel wrong when the board accidentally goes the wrong way (beginners get this all the time). WAAAAY better to go something like 18 front and 12 rear. i.e. it's like 15/15 duck, but then move both of them forward 3 degrees.
CASI (Canadian Association Of Snowboard Instructors) are fine if you want to go "forward facing" like your 30 front foot, but you have to do it all the time if you want to pass any exams, which gets hard. It's not a good footing to build your snowboarding career from (excuse the pun)
3. No. Three thousand times no. Then another thousand times. (I'm not trying to be a jerk, but you just failed your CASI Level 1 instructor exam.)
One of the biggest parts of the level 1 instructor exams is terrain selection, for very good reason. It depends a lot on the temperature at the time, and the snow conditions, but more often than not you do not want a blue slope for a never-ever. Find a green slope that does NOT go off to either side. ie. you roll a snowball down it, the snowball goes straight down the middle, it doesn't veer off to either side.
If you go too steep, your students will be terrified of the "dead zone" when they are between edges and pointing down the fall line, because they will accelerate and be afraid. That's how you teach people to go top to bottom on one edge, which is not what we want.
You MUST pick a suitable slope so the student is not afraid to actually make turns, otherwise they'll never progress. I see this in students all the time who say "I can snowboard" and they go down pretty fast, all the while standing perfectly still on their heel edge.
For what it's worth, I had been snowboarding for 5 or 6 years before I took an instructor course. Before the course I would aggressively go down all the double-black runs on the mountain, as fast as anyone, and fell rarely.
During the Level 1 course my mind was blown, my snowboarding was torn back to square one and I have been building on a correct foundation ever since. It's like a whole new sport, and I fell in love with it all over again. The title of this post caught my attention because I'm a Geek who learns and does things very intellectually. I highly, highly recommend taking an instructor course, even if you never intend to teach. It's the cheapest lessons from a very experienced instructor you'll ever get.