I have had mine for 5 years and my doctor has asked me 3 times when I was going to have it removed and have the sleeve done. I tell him "never" and he says okay. I think he just wants the money. I too, never have the same amount that he says he put in and he doesn't give me an explanation. He says it doesn't leak and he doesn't know where it goes. I don't really care as long as it works for me.