Remember the Ralph Nader book about the Corvair, "Unsafe At Any Speed"? Some of the M-II systems fit that category, either in design, or installation. Just because somebody sells a "kit" doesn't necessarily mean it will do anything properly, other than put a few bucks into the seller's pocket!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!