I use an iolite. No smoke, no throat irritation, no smell so you can literally blaze in a movie theater and no one will notice. Hell you can even smoke while jogging.
Street fights are not eye gouge fests. In the dozen or so fights I've witnessed, in the hundreds my friends have witnessed, in the thousands I've heard of, eye gouging is a very rare occurrence.
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The gracies (well maybe Rickson was) never were the best BJJ artists. Royce Gracie was not even close to the best BJJ guy in 1993. BJJ completely dominated even under a much less...
At 205 he would put on competitive and exciting fights, but would lose decisions through just being outmuscled. Plus if Serra can put him out, god knows what Rampage...
Being a better boxer does not improve your takedown defense, your spawl, or your hips. A grappler can take down a good boxer just as fast as he can take down a ****ty boxer.