Hmm I'll have to double check next time I sell something that has an option on shipping. Right now I am just selling books and I am doing a flat rate shipping cost to anywhere in the USA. The only options are for anyone who buys overseas.
Last time, as I recall.. I click on the print shipping in paypal, and it opens up a tab where it asks me to select the shipping type from a drop down box and set the weight. It never defaults to any shipping type. And if I look on the order details, all it tells me is that the person paid TOTAL and that X was shipping and X was auction. It doesn't say what the shipping type was.
If you could show me a screen shot of what you are talking about I would really appreciate it.