RF, you are going to find that so much of what works in ski instruction has to do with finding someone who "talks your language." Sometimes, even the instructor's level of certification is irrelevant. I've received fabulous tips from a level 1 instructor, whereas, I had one level 3 who just didn't know how to work with people.
Different images and descriptions will work for different people. I notice this a lot, when Mark and I ski with some of the locals out here. Somebody will give me an image to focus on and it will really work for me, whereas it will be totally meaningless to Mark.
The key to finding the right teacher is to look for someone who has a high level of commitment
to not only the sport, but to the art of teaching it!
Such instructors have more than one method of communication, because they want you to get it!
When you attend ETU, you will have instructors who are leaving the good snow and warmer temps of Colorado to come East and ski in ice and sub zero temps. These are pros who would be filling up their days with private lessons if they stayed in their home resort.
That's what I call commitment! Don't worry! You will find someone who talks your language!
Ah! Coincidence! U2's Stuck in the Moment
just came on the radio. That song always plays when I'm overly hung up about ski technique. Listen to the lyrics, next time you go out!