Are you truly maximizing the benefits of the time you send doing strength and conditioning training? I see so many "sport specific" strength and conditioning programs, yet I feel that many of them are not truly sport specific. How many of you do additional strength and conditioning to your BJJ training, yet don't see huge leaps in your strength and conditioning?
Each sport a person does requires certain movements. Depending on the type of movement, position of the body, whether or not there resistance, etc.. certain muscles are used in a certain way. When the force vectors on the body change, it changes what muscles are used and how they are used.
Let's say that I was going to have a contest with my friends to see who could do the most push ups. If I were to train for this contest, doing bench press with a weight equal to my body weight would not the most beneficial thing for me to do. The force vectors placed on the body when doing a push up versus bench press are completely different.
I once saw a video clip of someone showing how to increase the squeezing power of pins by hugging a pole with their arms and wrapping their legs around it. This pole was parellel to the ground and pretty high off the ground. The person was hugging the pole so their stomach was facing the ceiling and their back was facing the ground. The force vectors in what he was doing was completely different from pinning a person.
So when someone recommends certain exercises for your BJJ training, look and see if the force vectors are similar to any movement you do in BJJ. I'm not saying that there is absolutely no benefit if the force vectors don't match, but rather that you may not be maximizing the possible benefits for the time you are putting in.