I had my fobi done 11 years ago, i weighed 295 i am now ranging between 144 & 155, i go up and down, depending on my level of activity or inactivity, i googled "fobi pouch pic or image" and found drawings of the procedure.
I have had no long term ill effects, some dumping every now and again when i forget to chew or eat something that doesnt agree with me at the time. One thing i did find unusual was that i was unable to tolerate milk of any kind until very recently, i am now able to drink down at least a cup of 2% milk, with no ill effects or dumping.