In fact, I've just spoken to the chap, who is more than happy to send me a set, but he does ask that you keep your lawyers at bay - only because he's managed to seek indemnity for all the other bits of kit he makes, but his own legal eagles won't let him sell the basic set direct to the US in case he's sued over something that they haven't covered in their small print (I don't know if this is because they've incorporated small surgical blades which give a free toenail trim every time the wheels are used, but you never know). Ergo, if you want the wheels, he asks that I send them as a gift to you with no strings attached, as it were. Lord deliver us from lawyers...!