I train in what you would call a traditional mainstream BJJ school but I've always had an affinity to the 10P system. So I signed up to MTS and have been studying the system an using it in my sparring sessions. What I really like is that the moves are unorthodox and I find their success rate much higher than using the cookie cutter BJJ moves that everyone in class knows, so I do catch a lot of people off guard. The instructor is actually very supportive of me and doesn't have a problem with me using the techniques but a small percentage of the students seem to take exception even though I try to avoid leg locks and only use what would be considered legal under IBJJF rules.
Despite all this I march forward and continue with my study of the the 10P system.