Why isnt there more duodenal switches done?

I am deciding if I want wls or not and if i do what would be best for me. I must say from my resaerch that it sounds like the duodenal switch has many more advantages than the rny except for problems with malabsortion and the procedure being more complex. like: more stomach left, able to eat more and a variety of foods, better succees with weight loss longterm, no dumping. I also noticed that persons on this site w/ ds seem to post less complications. Can anyone share with me why so many people choose the rny over ds? Also I would like to see post or hear from folks that have had the DS and are at least one year post op. All responses are gratly appreciated.

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