One question to bear in mind when doing this sort of thing: just because it works in SPICE doesn't mean it's going to work as intended when you build it. SPICE is very ideal world. That may or may not invalidate this approach.
Source: several years of arguing with SPICE in a professional capacity.
Unfortunately using SPICE pretty much requires knowing exactly how it works so that you understand it's limitations. In turn, this makes it hard to learn, especially for students.
etimberg|11 years ago