It seems like a ton of people at my school are going down with knee injuries. I was wondering if you guys thought there was a correlation between how hard you train and likelihood of getting hurt. For the most part, I train pretty light, maybe 75%, play a lot of guard in the gi, which can have some stalling involved. I haven't gotten hurt yet, but the one time I thought I almost did (knee popped, but no damage) was a day I decided to really roll hard. Should you train 110% all the time or train like 75% and not risk getting hurt. I'd hate to have to take a 6 month break because of being too aggressive. Thoughts?