I'm interested to read this info, mocorn!  DH suffers greatly from any exposure to soy dust, oil, or biodiesel. It's gotten to the point that the grandsons do all the fuel filter work on whatever needs it now, as DH breaks out in terrible rashes and itches mercilessly if he gets biodiesel on his skin at all.  We're going to need to look into this therapy to see if it might help him do more of the stuff he enjoys.  Thanks!!