what makes you think bjj is just for little guys?? most mma fighters do bjj because its proven to be one of the most effective ways of defending yourself on the floor. just watch the heavy weights in...
where would you put this exercise (if at all) in your routine, would you use it on shoulders day, back day, leg day? seems its a full body exercise i woundered where you guys would use it.
i think thats some good advice, when my gf moved to australia i didnt know what the hell to do with myself just felt really down and missed her like you wouldnt believe, but keeping yourself busy...