Something I noticed when doing judo is that it is very difficult to take someone on to the ground. Judo make it slightly easy because of jacket which allow number of throw which isn't possible without it. If you do Sumo, this is more apparent because in sumo only way to win is to take down your opponent on to the ground or to push the guy off the ring but sumo has special belt which make it easier to do throw as well.Originally posted by SevenStar
What are you basing that on?
Unless you have huge weight advantage, it is not so easy to take someone onto the ground from tackle especially if elbow to the back of the head (often instant knockout and possibly fatal) or knee to the face (not necessarily fatal but very painful nontheless) are allowed. If you taclke and failed to take someone to the groud on that instance, you have to disengage or you get hit at the back of your head which is fatal. That is why spinning backfist and elbowing to the back of the head is banned in all boxing and kickboxing event.
In my view, more realistic grappling strategy against genuine karate/tkd/kungfu practioner who has conditioned fist is to tackle and tries to control their arm and upper body first rather than aiming for lower body. This is more apparent when opponent has weapon in selfdefence situation. It is easier to takedown if you tackle lower body but it is far riskier. Even then you have to worry about his kick and knee especially if you miss.
For example, look at this gracie video
http://www.gracieacademy.com/multime...deoclips.shtml
Almost all the clips in that site is about grappling, however, check out the clips in self-defence section. In that section, all the move are throws, joint controls and when there is one instance in which gracie charge he charge to control the hand which held weapon. These moves are specialities of aikido and hapkido where they attempt to control and throw opponent by lock.
If your opponent has weapon or has very powerful punch or kick, and your style is close quarter fighting or grappling, your best tactic is to charge at instance before the opponent make committed attack (very difficult, takes years to master the timing) or instance after the committed attack (safer but still difficult nonthless), this is in fact the tactics practiced a lot by aikido and hapkido.
It is often said that it is what you don't see which is most important. In gracie or any grappling arts, it is the timing of charging which is fundamental to their arts as self defence.
Well that is my view anyway. Please comment.