I just wanted to share this with everybody. One of the things my kids were afraid of was that once we got rid of the H200, they wouldnt be able to go tubing. Thankfully this little gem
http://airhead.com/airhead/ahth3.php does the trick. We connect it to the transom tie down hooks under the swim platform. The only downfall is that the transom tie down hooks are slightly larger than the hooks on the tow harness. They fit around the hooks, but they are not able to "lock" on them. I plan to get a couple of high strength quick release hooks that are larger. The way it is, there is more than enough bite to keep them attached, so its not dangerous by any means.