Hi, I have Zero experience in jiu jitsu and am planning to start taking classes this week or next week. I have a black belt in Karate (I go 2-3 times a week) and wrestled some in high school, but want to improve my ground game, which at this point is honestly nonexistent. Where I live, there are a few bjj schools nearby. There is a Rigan Machado sponsored school that is a 15 minute drive, and is tought by a 3rd degree black belt. There is also a Relson Gracie sponsored school that is a little farther away (about 30 minutes) in a different town tought by a brown belt. Does anyone have (a) any information on the difference b/w Machado run schools vs. Gracie type schools, and/or (b) which school might be a better bet? I possibly hope to do some kind of competitive bjj at some point but am also conscious of the idea that I may have to use jiu jitsu on the streets if my karate doesn't do the job. I plan on doing both the karate and the bjj simultaneously (karate 2-3 times a week and bjj 2-3 times a week) and work full-time. I would appreciate any suggestions/feedback. Thanks.