My question was legitimate and civil, and if you'll re-read it, I think you'll see that it is a very straight forward question - not internet bait or flame war material.
I have enough A-65's to build a B-17 replica and almost enough Aeronca carcasses to go with them. I would love a decent starter on any of them, but there aren't any viable options.
So the question remains, why did the McDowell starters fall out of favor and why haven't they been supported in decades?