Yeah, it is the weirdest thing. He did it under x-ray and I saw the whole thing. In his opinion and based on what I know about the band, it seemed to be working in all material respects. You could see the dyed liquid stopped for a about 15 seconds and then it passed through the tiny path created by the band. However, yesterday, when I went into his office, 5cc of the fill was missing. Therefore, it is now more probably than not that the band has some leak somewhere that did not show on that day (word to the wise, for all those that think the x-ray tells all). I am not looking forward to having to have this replaced, but it will probably be necessary.
Thanks for the info regarding your experience.