This is part of the reason I'm on a 'TKD'. The 'carb-up' 's for me- was nothing but a nuisance. Not to mention the fact that when I finally got my hands on some carbohydrates- I throw all macronutrient ratio's out the window (bring on 'da goods' I say). Anyways, if you want to utilize the 'CKD' at it's best- you've GOT to structure your 'carb-up' and be very meticulous about it.