I have to add that I have never had a failure of the Accel Gen 7 system... it works great. Actually - I think most all of these systems work great. The problems I've had is with the TUNERS... NOT the system. In the great Pacific NorthWET - we just don't have that many shops that are doing this kind of work... and it shows.
I wish I would have run into Brian Macey 5 or 6 years ago.... He seems to know his stuff.