I've had some success in "carb-cycling" for my own goals (gaining muscle while maintaining leanness). I tend to keep my carbs on the low side as it is but I'll usually do a more carby day on my workout days in the form of simple sugars and starches and try to minimize carb intake on my rest days. I workout about 4 days a week so it balances out over time.
By the way I don't really consider fiber to be caloric carb so I eat as much of it as I can regardless of what day it is.
1) eat real food - more vegetables, moderate meat, moderate fruits, less grains, less sugar, less vegetable oils.
2) exercise - moderate intensity cardio, sprinting, heavy lifting, dedicated stretching and mobility.
3) live - relax, de-stress, meditate.
Disclaimer: I'm not professionally qualified to make any formal recommendations. I've just done my homework and I'm my own guinea pig. All of my data, unless otherwise cited, comes from a sample size of n=1 (me).