i was thinking about ways to train for squeezing strength, because it seems like an extremely useful thing to a bjj practicioner, which i am. it couldnt hurt to have more crushing/squeezing power in your arms and upperbody when trying to slap on a guillotine, 1/2 guillotine, various arm triangles, etc. so what are some of your ideas on how to train for this? i was thinking any type of bearhug sandbag holds would be good - squatting it, walking with it, etc. also, maybe just squeezing it as hard as you can with good choking technique for timed intervals. any more ideas?