the problem with the idea that you fight like you train (although it does have a lot of merit) is that it is impossible to train just like a fight without doing serious bodily injury to yourself. so on the one hand you have pure RBSD type training which has difficulty simulating the stress of SD, then on the other you have sport fighting, which, IMO, is even more stressful than SD, but removes the techniques of RBSD.
another issue is the amount of training: no competitve athlete trains twice a week & expects to win a competition. yet how many people train teh deadlies twice a week & think they can disarm multiple knife weilding baddies? competition is also great motivation for training.
jf