Excuse me? You want to be able to launch an attack, unprovoked, against a server you don't own, without permission, and you want the owner to be cool with that?

You want the owner to be cool with you disrupting business, causing untold financial damage?

PEOPLE like you are the reason that relationship is strained, and the reason the CFAA was written in the first place.

So please do keep "pen-testing" sites you down own without anyones permission, I'm sure you'll end up with a great life that way.