Same here. Besides, wouldn't that lose resolution if I shrank the video.
EDIT: Then again, reading what you wrote. "Cap card A may make the picture area of the VHS capture 704 pixels wide in the final avi, but Cap Card B might make the same picture area only 699 pixels wide (but all will still give a 720 wide image stream in the end of course)" maybe not? Somehow I get the idea that a 699 pixel capture could never gain back the 21 pixels.