Peter, thanks for taking the time to respond with helpful information. As it happens, I have been in the MHR-D for a while, having learned of it first from Dale Baker's "50% Gains Investing" board on Silicon Investor. Most of my stock investing experience has been in natural resource plays. My foray into a few biotech stocks is an attempt to diversify. Given my lack of background in the biological sciences, I appreciate the information that you, Dew, and some other posters provide on both IH and SI.