Not a fan of this method, for the reason you stated. I also don't like how far down the kickstand will hang when in the up position. If you lean the bike, it may hit the ground, and that could cause a disaster.
I have extended one kickstand, and this worked great. I also think one could reposition the mounting bracket 10 degrees or so, and that would work.
See here: http://www.simplexservi-cycle.com/index.php?topic=636.0
Here are a couple of pictures for comparison.