Steve
Mostly Harmless
More effective at what they apply and less effective at what they don't, for sure. Easiest way to avoid that is to compete in other rule sets. Judoka would be welcome to compete at BJJ competitions. Some do, and they are more well rounded as a result.Really cool stuff.
Interestingly, Judo is a good example of a MA where competition rules heavily limits its methodology and actually begins to make it less effective over time.
I know this is probably obvious to some of us, but I think it needs to be said occasionally in threads like this. My concern is that some folks will misunderstand, and think that the answer to overly focused rulesets that may lead to bad habits outside of the ruleset is less application. Rather, it's more application.