Can I apply a BP on top of a PSU? Or vice versa?

This question was in my inbox this morning raised by a customer via a colleague. “Can I apply a BP on top of a PSU? Or vice versa?” Our feeling said: Yes, but you’ll have to deinstall the PSU first before applying the BP. Having a feeling is one thing, knowing the truth is better. And as I have so much fun by applying PSUs and BPs back and forth since two weeks I thought “let’s give it a try”. So here we go … Apply a BP on top of a PSU This is my starting point – Oracle…