The stage 3 unit is a great match for stiff suspensions, wide tires and a moderately heavy car. My 70 Charger has all of these things, and I am quite happy. ALSO, I have had great service with Firm Feel.
Sometimes as customers, we forget that business employees are people too. They have good days and bad. Who knows. Maybe the day a customer gets treated badly, the employee just found out that his trusted girlfriend had just ran off with a group of circus midgets. Hey, it could happen....