If you have very little or no SELLING feedback then I require you to ship first or exchange paypal equal to the trade values before assuming the trade. NO EXCEPTIONS.

For example: we are trading posters worth approximately $400. I will pay you $400 by paypal and then you will pay me $400 by paypal. That way, if I ship and you do not, then I can file a paypal claim to get the value of my posters back.