Offers on Short Sale - Accept one or all?

"Seller has the right to accept subsequent offers from other buyers prior to Short Sale Acceptance without liability to Buyer".  This is a direct quote from the Short Sale Addendum, which is part of a contract on a Short Sale offer here in Colorado.  Some agents continue to only accept a single offer on their short sale listing subject to bank approval, of course, while other agents accept them all and forward all the offers onto the banks.  It isn't always up to the listing agent, as many banks are dictating on how the multiple offer situation will be handled.  Some say, "only have the seller accept one offer and forward to us" and others are saying "send them all over and we will decide on which one we would like to proceed prior to seller accepting any."  My preference it to only submit one offer at a time to the bank.  I think that is the best way to serve both the seller and the buyer.  Then accept backup offers, and also forward them onto the bank as backups, if the bank allows that, of course.