I'm getting tired of reprogramming chips every time I make a change to my motor combination. I'd like to upgrade to a FAST DFI but they're too expensive. Max Effort seems to be an inexpensive alternative to DFI. What are the likes and dislikes to those using a ME? Do you feel like you've given up some driveability without the 02 sensor? Is it difficult to make adjustments? Do I need anything else to tune with a ME? Even if you don't have one, what is your opinion on it? Thanks