I need some opinion's on something. I've been putting off the idea of using something like rust bullet and por 15, which I'll wind up using the rust bullet if I use any of it, but I'm now thinking there is no way I can get my ospho, then prep then prime then paint all the areas I want to.I use ospho and it kills rust however I'm not sure I'll be getting the smoothest surface and Dont know if I can properly prep all areas that I can get the ospho in, the Ospho is basically like a rust killer, then leaves a primer coat........that scares me in that I dont want to leave primed areas (ospho) and them not have paint on em...... How do you like your rust bullet? I just feel like I dont want to "JUST" cover up something. I want my rust "DEAD" however I do want to be protected against future rust. My buddy tells me that I'm doing the wrong thing by stripping all the paint off the rest of the unrusted parts of my tub, and that I should leave it alone. I myself want it to be total bare steel and be prepped then primed then painted better than it was from the factory. Opinons please....?