Re: Ukemi worried
I think we are wise to be fearful of ukemi. I have seen yudansha take bad falls and on ocassion injure themselves. (Kaiken nage seems especially dangerous.) Technical advise is best received from someone in your dojo observing your habits but injury is less likely in all cases when one uses the opening meditation to focus entirely on the task at hand. Things like taking inventory of ones body (what are is tight today), noticing peculiarites about the practice area (has a mat separated in the left corner), assessing the training partners (here's the new guy who is cross training for ultimate fighting) etc. Take each throw as if it is the only one and you are likely to "escape" successfully.