thinking about starting a crossfit regiment to supplement my bjj training. i've read up on the program quite a bit. i really like lifting weights and some of the involved movements of the program. as i'm considering it, any thoughts on previous experiences that anyone might have in training? i'm a little scared of it for one reason. and i'm not exactly sure how the wod works. but it seems like there's quite a bit of weight training past the point of failure. that piece worries me with any type of weight, and form, and injuries. how does one mitigate the risk of injury?