@yellow rose Agreed on the DDD & time slips.
I have always said the DDD is a great learning tool for the new guy and really good to see how different cam values affect the curve. Accurate? Somewhat I’d say. I wouldn’t ever say it will be dead on or super close but IMO, it is a good program to get a good idea on what you could possibly see from your intended or current build.
For a super inexpensive program, I rate it OK to enjoy and learn a little something.
True, nothing like a real dyno and the track to prove it.