I use an Hasselblad branded Ixpress V96C on a Bronica SQ-B body through a V-mount adapter. Apart from the necessary ImageBank hard disk pack, I have to use the sync cord as well. Althought it is undoubtedly less ideal and less convenient than a proper thru-body connection, it works, and I don't really find that it gets in the way. The ImageBank, I would say, is a far greater inconvenience and I put up with that! I've never left it behind since it's always mounted on the camera and back anyway, although when I put the camera into the bag, I do tend to disconnect the end of the cable that plugs into the digital back to prevent too much stress on the connector when it is in a bag.
Some caveats:
1. You won't get EXIF information for your shutter or aperture values used for each shot.
2. You can leave the shutter speed set in the back to something like 1/30th or 1/15th for most shots and shoot at any shutter speed higher than or equal to this, unless you start to get to slower speeds, then you will have to start fiddling with shutter speed settings on both your camera body AND the digital back.