You're confused? I bought the Simon's from IPD because it seemed highly rated by other users on this forum. No mention, that I can recall, of it's ever needing forensic adjustments by a pro. And you are right, if I knew then what I know now I would have gone to Corsi in the first 25 places and had a custom system built for a lot less money and probably a better job. LIVE & LEARN!
I'd like to say that this will never happen again but it's way to late. I already have a S/S system for my 67 wgon that I bought from a place in England, a few years ago, that I have yet to install. This one has it's own special needs as I didn't buy the stock rear mufler with the system because I had a NOS Abarth (early 70's) unit that I am going to incorporate into the system this time with Corsi's help from the get go.

Meanwhile here, in Fairfield County Connecticut, auto repair shops of any kind charge $85 to $100 per hour for labor so even a brief visit gets expensive fast.