Oh yeah I am with you Phil. As I said before I prefer to use my own techniques and skills to diagnose any problems. If you have alot of experience with working on cars and diagnosing problems then doing without the OBDII system is not a problem.
I will say that a Hydra is NOT for someone who doesnt work on their own car. If you take your car to a shop and say here is my money get me XXX amount of horsepower and its a daily driver then the Hydra is probably not for you, unless its a dedicated track car. I would say the Hydra is better suited for those who are experienced mechanics, tuners, or someone who has some background with tuning cars.
-Matt