Grappling tournaments are very same and not as hard on the body as even most ball sports. I really think people that get big into competing definitely progress the fastest. If you are 100% healthy, keep training, keep pushing.
With that said, there is a such thing as over training. And those that over train usually must be constantly reminded not to kill themselves. We have a pro mma fighter currently at 10p bmt that over trains. Constantly monitoring him so he doesn't do 15 intense workouts a day or something crazy and injure himself like he has in the past. Lol. If I just had 1/4 of his work ethic.. Damn.