I think you are making a lot out of something that just isn't there at most levels. Remember, Championship Play. How many of these older bats do you think you are going to see in Championship Play? If you see a couple, big deal, make a decision or have the UIC rule on it. Keep the other umpires in the tournament informed.
Now, you are actually going to have to open your mouth and say something stupid or trip in the field before they think you are an uncoordinated fool.
This basically provides guidelines to allow bats that are obviously much safer and will be much more applicable at the lower levels. If you believe it to be that much of a problem, approach the local leagues about a possible ammendment to the ASA rules to eliminate the option of using the pre-2000 bats.