that's weird i noticed that Canada post is good for shipping in Canada, but as soon as it gets into the usps's hands all of a sudden everything comes to a stand still i don't know if it's customs, but it's like shipping into a black hole. all the big shipping companies (dhl, fedex, ups etc.) can get stuff cross border quickly compared to postal so i would recommend talking to whomever your buying from and find out how they are shipping