Hi Naomi,
>However, the more indexes we have, the more chances for corruption, IMHO.
Does your client have a problem with index corruption? If not, it seems that you are trying to solve a problem that doesn't exist. <s> In this case I'd add index refactoring to a list and take care of it later or when you encounter a problem. Keep the indexes in mind if you need to solve performance problems, though.
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Christof