THEORY: Why does restriction only last a few weeks?

[Losing_It_In_Texas 0]

My doctor said restriction goes away as the fat around my stomach shrinks but there has got to be another explanation. Between my second and third fill (1 month) I only lost 4 lbs and yet I lost restriction after the first week. My stomach couldn't have shrunk that much after one week to make a difference. Does anyone out there have another explanation that makes more sense? I could see losing restriction if I had a 10lb plus weight loss but 4 lbs....just doesn't seem possible. Has anyone else lost restriction with only a few pound weight loss? And he checks my volume each time before a fill so its not a leak or anything like that.

[Losing_It_In_Texas 0]

WOW...thanks Jack! You always give well thought out, concise answers.