He is clearly a very well educated person in regard to his specific field of study, work, and instruction/consulting.
Personality, perceived motivations, and trimming aside the man knows what he's talking about and not just in a cursory broad outline scope.
I don't understand why so many people hate on him including a couple of instructors I've taken courses with that have either hosted/instructed Mas on a couple given subjects and a second who knows of him via industry relations. Both have publicly spoken ill of Mas but it came off to me as nothing more than raspberries and to a good degree jealousy of Mas high profile appeal.
I figure wanna be like Mas, then right some good books and get yourself a magazine column then wind up on PDTV (as Clint Smith has done too...who I like alot) and from there begin scoring yourself jobs as a consultant and 'expert' in various court cases that result in wins.
It's that easy...or is it.
Thus far to me most of the stuff Mas states in books and elsewhere including PDTV is nothing more than uncommon sense and cop view street knowledge mixed in with a little bit of generic medicine here and data analysis there as well as a smattering of martial art/bio-mechanical compliance & submission tech teaching.
No one person knows all but many persons know a lot.
Studying under and making use of information from the many persons makes one a more rounded and most knowledgeable student of the subject matter.
- Janq is a fan of Ayoob and a devotee to no one 'expert'