The problem isn't that people are wearing their no-gi rank, they just haven't learned the fundamentals of grip breaks to counter-act some of the advantages the Gi gives. Realistically, if you train Jiu Jitsu and you're at least a purple belt, you should know how to break some grips in the Gi, especially if it's a major hole in your game when you go into tournaments. The same goes for learning how to defend against lapel chokes.
Here's another 10th Planet brown belt Ryan Fortin having no problems in the Gi.
I don't think the difference is that great. Not enough for me to have a white belt for when I train with the Gi. If anything, my game is better when I wear it. However, I would respect an instructors request to wear a white belt if I was visiting another gym.
Here's another 10th Planet brown belt Ryan Fortin having no problems in the Gi.
I don't think the difference is that great. Not enough for me to have a white belt for when I train with the Gi. If anything, my game is better when I wear it. However, I would respect an instructors request to wear a white belt if I was visiting another gym.

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For me it's a totally different game. I started Jiu jitsu in 10th Planet so when I put a Gi on to me it kinda felt like cheating lol. Now I know that a lot of folks including Marcelo Garcia only play "one" game, not me. The way I see it the only reason I'm putting on the jammie's is bc I'm gonna use it. I use the Gi when I'm in it so as you can see it is a totally different animal than my NoGi. 
