5 bolt valve cover leaks
There sure does seem to be a lot of resistance to the facts on this.
It is easy to blame it on over tightening, or being to dumb to put valve covers on correctly, but the only way this is going to change is if they can't sell them.
And the only way they are not going to sell them is if this kind of information gets out there to possible buyers.
It's possible that they already don't care what the BB cover reputation is because it's not worth the sales amounts.