At some point I, invariably, plan on training both. However, someone told me that it was perhaps a good idea to get really good at one, before training in the other, citing that one could then be better understood for the purposes of applying it to the other. I just started BJJ a month ago, and I have little, to no, knowledge of how to efficiently take the fight to the ground. We have a 3 time olympian teaching somewhere here, and a bunch of blackbelts teaching Judo, so we have good clubs it looks like. Would it be prudent to study both at the same time? Or should I perhaps wait until I'm at a more advanced level in BJJ before taking Judo? The way I see it is at some point I'll probably enter a competition in BJJ, and 2 points are awarded for a takedown, so why not try to get 2 points off the bat? If you could harai-goshi someone into oblivion while going to the ground and get side-control, why wouldnt you? Is there something I'm missing here?