I'm trying to understand the theory behind dual pattern cams a little better. Are there any online resources that can give a basic (or more advanced) description and logic behind them and their use? Or, if any of you feel like throwing out some info, I'm all ears! I know there's as much knowledge floating around here as anywhere. It's catching it (and being able to understand it) that's the trick! Thanks for any suggestions and/or insight!

UDHarold had a pretty good post on dual pattern cams several months ago. You might try a search.