PSIA has its defenders, preachers and spin doctors. When you read the response below this should give you a better perspective about the on-going frustration amongst even PSIA insiders and their own public persona via the Epic and other Ski Forums.
Whatever the intelligence of PSIA insiders on Epic Ski forum or other forums like to write or say, they are still after decades, confused about their own skiing and have been since day one.
The first thing they commented about, after my first book came out "Anyone can be an Expert Skier", was, “Harb is crazy.” PMTS is a joke, Direct Parallel doesn't work. They repeated time and time again, "The stance is too narrow, you need to have a wide stance. You cannot stand on one foot, two footed stance is everything. The extension is everything and necessary to get forward and the "capper" was, The best skiers in the world never lift a ski from the snow.” Well they have been proven wrong on every count.
Now all of a sudden everything I wrote 20 years ago is "IN " according to PSIA and Epic! So they are only 20 years behind now, (and still don't get it) or can explain or use it). We have again moved ahead another 20 years since my first book, which now puts PSIA a net 40 years behind, even if they start realizing they have been wrong for the last 20 years.
PSIA's strategy now, is to say "they accept everything", but they have no idea how to even give a good lesson with their own stuff, let alone anyone else's methods. In their world they now have to say they accept "everything" because they have nothing of their own worth telling! They have become the Fake News and liars of the ski world.
If the Epic Forum guys are so damn smart, why don't they get an accreditation in PMTS? At least if they did that they could then say it doesn't work. You can't teach or know PMTS until you are trained and accredited, this has been observed and proven to us time and time again!
Some PSIA trainers every so often on the hill with instructor groups, are trying maybe to introduce some of our terminology. Why, because PMTS works better, and people are talking about PMTS. Can they fool others into thinking they can teach PMTS or use PMTS? Not really! We have yet to have one certified PSIA instructor/trainer properly deliver PMTS teaching during our Accreditations correctly. Even Full Cert PSIA instructors, have not successfully arrived at achieving our levels of teaching and or our skiing standards; in any one of our levels of accreditation, without "substantial training". Those skiers, that have no PSIA training, or have given up completely on PSIA, do a much better job and succeed at a high rate in our accreditations.
Notice I didn't say the PSIA full certs "failed". They didn't fail, because even if they were not yet at our standard for an accreditation levels, they still raised their ability to teach, by going through the process. However, during the accreditation few immediately arrive at our required 2 completely successful taught lessons, which is mandatory, during our two day accreditation. Everyone has the opportunity to teach three lessons per day, in the two last days of a PMTS accreditation, two attempts at PMTS lessons have to meet the PMTS accreditation standard.
So back to the topic of PSIA trying to copy some of our PMTS Essentials or movements, we have heard PSIA has tried to incorporate a few PMTS words or "tricks" and put more tools in the bag, but they still cannot teach or present a standard close to a PMTS lesson as given by a PMTS accredited instructor. They carry too much baggage, they have loaded so many tricks into their bag, it is so big by now, they can't figure out how to use it..
We unfortunately have contributed to their dilemma, we have given them too many new approaches and too much new information to digest. I think we are doing them a disservice by producing more skiing movements then they can handle. It really confuses them when you start to teach movements and refer to the body parts you should move to achieve success. Remember with an outcome based system like PSIA uses; they never teach how the movements are made, only what you should end up with.
Example: “You need more edging.” “You need to steer the skis onto an edge.” These to commands tell you very little about how skiing is created, and in that approach lies the dilemma for PSIA. Confusion reigns and results are inconclusive and vague. PMTS has a yes/no response to every aspect of the skiing turn. You either made the movement and created the result you wanted or you didn't make the movement therefore the result didn't happen.
Because we have defined the "Essentials of Skiing" each piece needed for good skiing movements is immediately recognizable and attainable. This is the beauty of a movement system based in human movement capability, derived from the best skiers in the world and boiled down so it's achievable to the recreational skier.