I'm definitely no expert on this, so take it with a grain of salt. I've been reading a bit on keto diets recently and was reading some on Atkins stuff. It may apply or not, but in his regimen, after you get to your target weight, you should go in to the maintenance phase. He basically recommends slowly introducing carbs back into your regular diet so there isn't a big rebound. Now being a bodybuilder vs fat lazy slob, I realize there are differences in how you would utilize a typical keto diet. And the reason for the weekend carb-up is to have a big rebound, so I don't know if the same principle would apply. Could you just continue the same regimen, but increase your calories accordingly? I think it has been recommended to go from a cut to a lean bulk, to add a couple hundred extra cals a week until reach reach your new calorie requirements to bulk, rather than going from cal deficit to a 1000 cal surplus. I'm interested in some more experienced responses myself, since I am starting to cut and will probably switch to a ckd as I start to get leaner in order to finish it off.