Just happened to read your post this a.m., Ed, before running a day's worth of errands. I found myself at the end of the trip near my brother's house, someone I hadn't seen for 6 months, so I dropped by. Our conversations included the topic of electrical connection corrosion, and I mentioned your CorrosionX suggestion. My 73 year old brother is well known for his perfectionism, and not the least for it's application to restoring a '36 Plymouth and a '40 Ford. Replacing a substantial percentage of the cars' fasteners with stainless steel is an example of his aversion to corrosion.
In his garage, a weekend mechanic's heaven, he reached among his stash of automotive chemical containers and handed me a full can of, you guessed it, Corrosion-X HD, with the exclamation, "happy birthday a couple months in advance". I reckon I hit the jackpot, and won't have to go looking for the stuff now, so will put it to good use. Brother did suggest that he'd prefer to use dielectric grease instead, but with the extensive amount of connectors and terminals involved throughout a coach, that would be pretty time consuming. Spraying anti-corrosive sounds the most practical.
So, thanks for the suggestion; those of us who follow it will likely benefit. I'm not sure we're going to be able to get the stuff inside some susceptible components, like controller or sensor boxes (eg Alladin) where many fellow members have found grief, but connectors like larry's are treatable.
Joel