Most interesting. Thanks for the information. I think you are right.

As for the GSP... it never worked before for low value listings. It entailed 2 shipping charges and an extra charge from eBay which already made it impractical. The shipping cost was frequently over £30 compared to a real direct cost of less than £10. Does not compute!

My listings rarely go more than £30 so I'm sticking with not posting to the USA.

Best regards. Fish.