Running out of pop corn, hit the pause button even though I have seen this scene many times.

I remember when the actual engineers of these products used to participate on this forum and explain why they did what they did.
All this discussion is here deep in the boules of this forum but it really never did answer the question most ask, which design is best.

I guess just simply that was the most cost effective solution as someone else said before. So what did they say?

"...So what did they say?" - As they say search is your friend. Not to cut short but to much has been said/written with many differing opinions and theories.

My opinion is to just Put my head in the sand and hope I got a good one. Maybe even try and sell while it all still works

Oh, I misread what you wrote, thought you meant the engineers from Porsche stopped by here once. I`d be curious to hear what they say, not the engineers (?) of these solutions.