hi guys, picked up my new 2011 f250 the other day and i live in a road salt infested area 6 months of the year. what do you recomend for the best in rust proofing, the spray stuff like rust check or krown or the tar type coated underneath or both, how about this electronic system i have heard of ? i would like to hear the pros and if any cons of all, i plan on holding on to this truck for a while, thanks