A few weeks ago someone contacted me, looking for a Pressure Trace unit, and asking if the company was still in business. At that particular moment, the Pressure Trace website was not working, so I jumped to the conclusion that the company had gone out of business.
Well, they are still in business and the website is working now. http://www.shootingsoftware.com/index.htm
I still think the Pressure Trace is a great toy and a useful tool. It does have limitations, and I have a few knits to pick with it, like the OBT calculation which is based on a bogus theory (the OBT theory originator does not work for the Pressure Trace company). Personally I would not want to be associated with OBT. That said, the Pressure Trace is loads of fun for the shooting nerd and the next best thing to having a real pressure lab.