Daniel Estrella is one of my brown belts at the academy and my assistant combatives + self defense instructor. You will find him often teaching the 6:00am Brazilian Jiu-Jitsu classes when I cannot make it. You will also find him religiously at the 5:30pm Friday night scheduled C+S class. There are not many sport martial artists that wish to branch out and learn edged weapon, stick, firearm, etc with the same drive they learned their foundation style. He is one of them, and he will be the first to tell you it certainly changes the fight game.