I think PULM is by far the stock I know best. In my blog, I guestimated that the stock would bounce between 3.50 and 3.75 on the day that I bought, so at the beginning of the day (and not wanting to use a PDT), I set up a limit buy at 3.50. The low point of the day was 3.49 I believe. I held overnight and sold at the highest peak the day after. It wasn't a great profit, but a profit is still a profit, and I'm very happy with it.