I just removed the paint off my boom that was,scatched, blistered and chipped and it now nice shiny and smooth. One person told me to apply a prime Zinc chomate and then paint it. Another told me to leave it bare and spray it with an aluminum protector. I like the latter since it would or should be more maintenance free. Any comments ? Will the protector really work. I don't want a crusted boom. Thanks.Jim