You say they are bad
But i think ive learned grip-rites are the only electro-galvanized nails that are actually good without buying specific Hot-dipped or stainless.
My roofing supplier loves me.
I feel i get good prices
But yet i can get my nails from Home depot
( grip rite) for cheaper AND way more rust resistant.
Here in sunny florida this is how i like to do it.
My underlayments are pitch specific and so are my fasteners.
Above 2/12 stainless
4/12 to 6/ 12 Griprite
7/12 and up- Chinese or really not concerned with origin.
Because You dont see fasteners rustIng out on a 7/12 in florida.
I have but Only if they were Incorrectly installed nails, low nails( exposed fasteners)
Owens Corning Duration being the exception
But that is because it is a bad design.
Their design encourages the water to sit right on top of the fasteners.