What is the best way to improve on #BJJ ?

here is an opinion that is worth reading

testimonial about Felipe Costa

"We, from Brasa Belgium, train under Felipe Costa's guidance for almost ten years now. We have him over for the personal training program on a yearly basis. It's always one of the highlights of the year. I like the fact that Felipe doesn't show a lot of techniques each class. Instead, he focuses each class on a few techniques with a lot of attention to the details and principles. Principles which can be used in a lot of other situations and, as such, influence and improve our total game over the course of the year.
Another thing that I like, is that Felipe teaches those techniques you see him use in his matches. He holds no secrets, but teaches competition-tested techniques exactly how he uses them. I recommend the PTP for every serious BJJ-academy or -practicioner! "