Hi Pennykid,
The example person was Patrick Kelly himself who I try to visit at least once a year now.
And in US I train with his student Tim Suh in Chicago. Also have Guillem Bernado (who ran PK's school in Shanghai during Covid) visiting once or twice a year to US before Covid and hopefully resuming again soon. Tim and Guillem taught a bit over zoom during covid too, that's ended but Guillem still has online resources at taijistream.com including free intro:
https://www.youtube.com/watch?v=_51xRJfQ7XoI would say his top students have a fairly clear picture of his method (even his not so top students get a pretty clear picture of what we're supposed to do), a few of his students feel "unusual" or just very sensitive and smooth, but usually I did not spend enough time (100+ different people in the room and we rotate through exercises) to experience the full depth of what they could or could not do (we train very specific exercises so I just experienced their skill in context of specific exercise we were doing).
Like any school of course a small handful are more experienced and much deeper than average.
PS: I saw your profile NZ HXX taiji, are you a student of WD or RL? I saw met WD in person first time last August.
Also CS from Austria is doing first US workshop in Chicago next wknd and I'll be there.