"I am 44 years old and I have been practicing BJJ since 2008. I am pretty passionate about bjj and I have bought MANY DVDs, books, and instructionals. Your DVD set is one of the best due to the emphasis on principles and concepts vs techniques (though there is plenty of proven technique as well). The DVDs have really changed my approach to training; I am focused much more on routes and general concepts and less on physical attributes.
This is paying great dividends as I am much more competitive with the young guns at the gym and at tournaments. Thank you for creating a great series for us "senior" players."