I used to be an MSD fan too!
I had an MSD box in almost all my cars, both daily driver and fun cars.
Their msd feature comes in quite nice, when AFR is not quite right.
But over time I have suffered just too many failures - for me too high a price to justify the "advantages".
The newer the stuff the worse the QC.
My fun cars are back to org. Ford distributors with a Pertronix module (and a spare in the glove box). No more failures and some have been in there working for more than 10 years.
The MSD era was preceeded by Mallory unilite - got me to know the tow truck drivers real well... The root of the problem was a non existent spike protection. They have learned and are offering it as an option.
