Good question
@Loki1. I'm intending to take the Level 3 ski exam for the first time in March. I started this whole quest 7 years ago when I retired from my career and set an objective of skiing at the Level 3 standard. I thought it would take a couple of years, but the more I've worked on my skiing, the further it seemed I was from the standard.
In many respects, I'm atypical of a Level 3 candidate. I'm a (very) part-time ski instructor. As a result, I have a lot of time to work on my skiing and to train for the exam. I have financial resources, so I can hire a coach (a former Danish demo team member and Rookies Academy trainer). And I'm old -- 63, but I'll be with a few weeks of turning 64 at the time I take the exam.
Personally, working full-time as a ski instructor and taking the exam seems to me to be a huge challenge. When do you find the time to train? There's no doubt that teaching can help your understanding of skiing biomechanics, but teaching lower level students only yields so much benefit -- and gaining the high end understanding to benefit MA and teaching level 8 and 9 students is pretty elusive. Let alone use that understanding to improve your own skiing.
Clinics at your resort can be a big help, but as Ann Schorling related to me many Level 3 candidates do too much clinicing -- they fail to master the things they were working on in the past clinic before going to the next one. And the variety of voices can make everything a muddle.
For the years I've been in Aspen, my objective was to have more training hours than teaching hours at the end of the season. This season I've cancelled participation in every Cert 3 clinic. I want one voice right now. And to work on anchoring the material that I've worked on with my coach.
Also, there's a lot of stuff that gets fed to folk in clinics and in the locker room that are adages, myths, misunderstandings, and/or coaching cues rather than biomechanics and physics. Personally, I had a rudimentary understanding of skiing, but what has stitched it together for me was the online content of
@tomgellie. Still, some examiners are very dogmatic in their belief system. Some are willing to have you show them that their beliefs may not be complete. But there are items out of my coaching that I'd never show to an examiner -- some. of it is so challenging to the common belief that I doubt you would ever get a hearing of it. Why do I say this? Because my coach, a highly regarded trainer and examiner, won't discuss the topics with his peers as he doesn't believe that they would be receptive to it.
In summary, Level 3 is a huge undertaking. It requires a lot of study and training. It's difficult to balance work with preparation for the exam. So it's not surprising that many attempt it but fail.
Mike