Hard to believe he wouln't pay the shipping AND apologize! What's a few bucks when it is the RIGHT thing to do.
Yes you'll get a negative in return, and his will still be in the 90% bracket. So if it makes you feel better, then do the negitive. Or Complain to ebay! I think you have a legit gripe...persue it?
You may still get a neg, but then you can dispute that too with ebay.
or just let it all ride?
Yikes, Ebay must be flooded with thousands of gripes per second :)