The Yang style that is transmitted by GM Wei is dependant on a number of core principles. Whether you practice the 22, 37 or 108 variant of the form the principles are the same.
To use the form to make a breakthrough in your Taiji skill you need to study the principles very closely. It is too easy to learn the form and think you got it. If anything, it is too easy to do the form wrongly and I have seen some terrible performances of the the basic form where many of the principles are absent or downright perverted.
It is not too much to say that if you want to master the principles you have to think, eat, dream them every day until your mind achieves that insight which will open the door to a different understanding that anyone who has not entered the door will not understand.
Learning this type of high level art requires a certain amount of dedication, what Jiro Ono, the sushi master who was awarded 3 Michelin stars, said in the documentary Jiro Dreams of Sushi as doing the same thing every day i.e. one must be dedicated and single minded in the devotion to achieving perfection. Again, I have seen practitioners of this art do it together with their other arts and you can see that their achievement of the principles are not clear or absent.
I am not in a position to admonish them nor do I care to do so. However, anyone who desires to preserve and transmit this art should do it wholeheartedly and it begins by ensuring that one has really mastered it and not just imagine to have done so because friends praise one or that one has some skill that is really from another art. This is the better way to do it justice.