As to the idea of sport training or self defense training in a grappling art - I think when a practitioner has enough time in (and I do not know how much time that should be), but let's say five years of serious training, I feel a practitioner can differentiate between either, and apply what they know to any circumstance they are in. Maybe it's more time than that, but there comes a time when you would have to be a complete idiot not to be able use what you have in a different situations.
Think back on your last five years of training. Did you only think about training while you were in the dojo? Hell, we even think about in in our sleep.
Think back on your last five years of training. Did you only think about training while you were in the dojo? Hell, we even think about in in our sleep.