If you were to "Fix" a problem the moment you realize there is a problem to "fix" and it happens to be the same day you originally canned the foods it would be safe to redo the process on the foods. I wouldn't reprocess anything after the first day to be on the safe side. There are some lids on the market that are reusable over and over again.
Here they are
http://www.reusablecanninglids.com/s....php/shop.html