I've been doing Foundation One and the Stretch Series consistently for the past 10 months and have really enjoyed it, especially how flexibility/mobility are given equal weight to the strength exercises. In fact, this has been my primary S&C program and workouts outside of jiu jitsu and JKD/striking.
I was curious as to what the philosophy is behind doing higher reps and multiple sets in order to build strength. Is that primarily to strengthen connective tissue? "Conventional wisdom" would say to lift heavy weights and low reps (5 or under) with lots of break time in between. GB seems to take the opposite approach. Thanks.