PP, hands down. SD craves glycogen, and you're not supplying any. I don't get the results on PP that I do in SD, but the sides would be unbearable using SD on a CKD. Plus, you're obviously on a cut and need an androgen more than an anabolic. My body craves carbs on SD and craves everything on PP. Just IMHO.
Good luck, and let us know how goes the CKD w/gear.