Re: Slippery Tatami
The only mat related injuries I have had have been from gaps in the mats, and sticky mats (specifically wrestling mats). I did the splits with my big toe and the next door neighbour toe and put my weight down on it. My poor toe was not happy, but it was OK for the rest of the seminar as long as I taped my toes together. Other than a bit of mat burn, slippery mats haven't been a problem- and can add to the drama of ukemi sometimes!
e ya later