Hanzou
Grandmaster
- Joined
- Sep 29, 2013
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You don't, but some people do. I don't think I've seen it happen with upper body locks, but have seen people who tap early for chokes, when they don't need to.
I have tapped to chokes that are painful instead of actually cutting off air or blood. However, I feel that tapping to pain really doesn't cheat the person doing the submission like tapping early to leglocks do.
Also, when I trained in sambo, they spent more time learning how to control leg locks to make them both accurate and safe then in BJJ. I don't know if that's isolated to the sambo school that I went to, but i've been to probably around 4 BJJ schools and none of them had that much focus on teaching leg locks safely. As a result they're either not done much, or done incorrectly.
Some BJJ schools are learning leglocks from DVDs because their instructor didn't learn it properly, and students are demanding to learn them. So yeah, I'm not surprised that the Sambo guys look better doing them.