I do not know too much about these.
My aunt had one done about 10 years ago.
She is now about 80 lbs shy from where she started from, essentially stretching her belly right back to where it was before the surgery.
I dont think she really understood that possibility.
She was over 300 lbs when she got it done the first time.
What she got was the gastric Y .
She lost all the weight and she claimed it was simple and no discomfort.
Her skin was an issue for her though.
Lots of rashes, dry patches and some infections. Apparently the loose skin rubbed against her body all the time, no matter what she did. Powder, swimming clothes..etc. Nothing helped.
She had to have some removed, but she could not afford it all and her insurance company would not help . It was considered cosmetic no matter that it was making her sick.
But that was the only issue. Not a small one either.. but the only one.
To date she has not had any issues with her stomach, intestines, or the stitching. All of that seems to be perfect.
Dont know if that helps.