I learned that hard way, had a well known barrel man tell he could solder the loose rib without the full monty. He did it and then did a nice job rebrowning the damascus. About 3 months later rust started weeping out from under the repair. He told me to rinse it with baking soda to neutralize the flux (he had assured me he would use non-corrosive flux).
The short of it is that after two years of weeping rust Kirk Merrington looked at them, gave them the full monty and said there was plenty of corrosion between the barrels that he had to clean out.
If the gun it worth keeping it's worth doing correctly.
The Super Fox HE I saw last week had the last 2" of the top rib loose. Needs to stripped, relayed and reblued. The owner is griping about it but there's no way around it.
If the gun's value doesn't justify the proper remedy then use epoxy. At least it won't make it worse.
