Just to throw my 2 cents in. I am starting my 8th week of CKD via Mr. X and it's working great. I do kick up the protein a little on those low protein days and I am having no problem going right into ketosis. I also have 40 grams of dextrose and it does not kick me out of ketosis at all. Last week I did my first week of SD and of course this was the first week I didn't see any weight loss. As a matter of fact I went up 3 lbs. and I look leaner. Will be measuring BF as soon as my new calipers arrive.
My kids think the washboard abs are cool.