Has anyone 'failed' to lose weight with the DS?

I was just reading through all of the posts.  I wondered if anyone has 'failed' to lose weight with the DS surgery.  Your insight would be appreciated.

Thanks,
ZenSharon

Ok I haven't been switched yet, so I can only tell you what I have researched. 
There is one woman on the D.S. site that hasn't lost to the 50% level (considered to be sucessful) but she said there was a medical reason behind it, and does not regret her decision to have the surgery.  All other statisics show a 97-98% sucess rate, remember this is the 50% mark on all surguries.  The average will be about 80-85% of excess weight lost.  Hope this was helpful.