Bounceback Weight w/DS- Due to Decrease of Restriction or Decrease of Malabsorption?

I hear the phrase "bounceback will happen" on here a lot.
Understandable, as ALL WLS has some regain involved after the maintenance. DS regain percentages and pounds are much much lower than all of the other surgeries, no doubting that :)
Being a "victim" of regain with the VSG, I realized I was exactly what those long-term studies were speaking about. So regain and percentage of EWL is a true concern for me, and I no longer think of myself as a unique and delicate snowflake that will magically perform better than average statistics for my surgery. (Especially now that I can no longer perform the heavy exercise routines that were the main component of my weight loss during the VSG).

So... 
I ask you DSers
What do you think the most of the bounceback weight after maintenance is due to?

bad eating habits such as carbs coming back?
stomach restriction waning / stomach stretching?
is there a decrease over time of the malabsorption capacity of the DS?

I expect no consensus on this, I am asking you for your general conjectures and antidotes and experiences because you seem a  much more scientific bunch than most of the forums and I can't seem to find the info anywhere else.

Thanks! All comments welcomed on the subject.

 Full disclosure -  one of the reasons I'm asking is because I'm a sleever seeking to "upgrade" to a switch. I am leaning towards not wanting to be resleeved, just having the switch part done. (resleeving introduces high stricture risks). Two of my consults (one phone, one video skype with doctor) said I may need to be resleeved. I'm trying to figure out if:

a) i forgo the resleeving, and just deal with my "stretched" sleeve (i can eat about half of what i did pre-surgery, but even meals of solid proteins i can ingest a LOT without problems).
if i do this and get switched, what is the likely hood that the Duodonal Switch portion of the switch will after a few years lose its malabsorption effectiveness.

b) oh wait there is no b.

quite honestly i'm really afraid of resleeving because of all the info i've read about strictures, and the resleeving stricture complications i've seen a lot of those on the vsg boards. 
i'm such a fraidycat. lol.

I think it's a combo of all three of the things you mention--carbs, stretching stomach and a little less malabsorption.  We do seem to have less bounce back and regain when compared to other WLSs but you have to do a little work but it isn't fruitless work.

--gina
 

I agree with MM -- it's a combo of all three. I have been told that the last one (decrease of malabsorption) does happen -- that our bodies "adapt" over time. For me the beauty of the DS (and the reason I had the DS) is that if I do see the scale creeping up, I simply adjust my eating habits for a while and the weight will come back off -- kinda like a "normal" person 

All of the above.

The malabsorption decreases.  I can eat more.  And I got tired of the low-carb diet and couldn't do it anymore.

All of the above.    I've had a less than ten pound bounce back and am maintaining well at five years out.  I can fit in LOTS and LOTS of carbs these days.  I have to rein them in once in a while when I see the scale creeping up.  I'm up a few pounds lately, so I'm forcing myself to put away the potato chips.

I'm attributing the first two for sure.  We're using so small an amount of our intestines, that I have my doubts that an increase of absorption is an issue (kind of like adding another gallon to the Gulf of Mexico - does anyone notice?).  Although I can eat nowhere near what I used to, I DO eat more than the few bites I used to eat.  I estimate I can eat 6-8 oz in a meal nowadays.  I also eat pretty freely.  At my most shameless year, I gained nearly 20 lbs and a clothing size or two.  It was when I opened my restaurant, now buzzing around like a bee all day for 12 hours, and rarely having the opportunity to sit down to a respectable meal that I dropped 15 lbs without even trying. 

I also think it is due to all three factors.

That being said, at 6+ years out, I still have to work at keeping my weight up and I believe it is due to the malabsorption.  If I had just had the sleeve, I would have had a massive amount of regain with the way I eat.  I still have restriction, but it is nothing like the first year.

HTH,
Michele

What do you think the most of the bounceback weight after maintenance is due to?

bad eating habits such as carbs coming back?
stomach restriction waning / stomach stretching?
is there a decrease over time of the malabsorption capacity of the DS?


Yes.  But probably mostly the first two.

All of the above. The one over which we have control is what we put in our mouths. Pardon me while I go have a peanut butter cup.