well, I do MMA (mostly as a hobby). I don't agree with training for strength only..you'll wanna train for explosiveness. When doing BJJ, for instance, yes, it is an advantage to have power and strength, lots of guys who do BJJ concentrate solely on technique. They are usually excellent at submissions. however, if you've been lifting seriously for years, you can power through alot of the submissions with pure strength, be careful though, make sure you know what you are doing. But, you can't do this for long. The most valuable thing I learned was that lifting moderate weight with high/fast reps was better because when you are trying to pass guard for example, it's better to work in spurts. You can be in someones guard and not be working hard, then explode and change positions...most often I've noticed that eventhough someone is more experienced than me..they usually can't handle the amount of power I can muster up in short bursts. You'll also find that no matter how much cardio you do (if you are a bigger guy) that you'll burn out very quickly, so, this, technique of exploding and resting will work for you