So I have carefully read a lot of posts here regarding frame prep, and am wondering what method is the best for proper rust-deterrence? I guess the options are POR 15 or sandblast, primer and paint (like I did with my newer Chev, but it's not proving to be 100 per cent.. then again the painter could have been awful)
What would you all recommend at the end of the day? And when using POR 15, do you sandblast at all, or just slap it on the frame and voila?

Sorry for all the questions, this is definitely learning in motion here!