Yes - I've been on enough Grayhound buses to know what you're talking about.
The shipping via USPS is a lot less when I get something sent to Blaine Wa. USA (CAN-AMER Freight). It is amazing how much more it is to mail a drum just across the boarder to Vancouver sometimes. I've had a quote for instance on one package at $160 to Vancouver....but $40 I think it was to Blaine (I'd have to go back and look at what the exact postage was). It was from Sam Ash to me at Can-Amer. Even after driving from Van to Blaine and back I saved money....and I had a beer and lunch too! Yes - the boarder is fun....It's all that extra (or potentially extra) handling I guess they have to charge you for.
Just got an email from the seller - she's going to take more pix for me tonight (pix of the drums).