For cutting while maintaining muscle, I can just tell you what I've noticed in my own body and in the bodies of those I personally help with their diet and workouts that gives the best results. I'm sure it does not work for everyone but again, have not worked with anyone who it didn't...if they can survive the first 2-3 weeks.
It is just yet another carb cycling routine, nothing special, but does work.
M-F high fat,
moderate protein, and low carbs (20-30g). S,S
high carbs, dont worry about protein, and keep fat high.
This would mean to eat 60% fat, 35% protein, and 5% carbs...or less through the week then cheat like hell on weekends. Keep calories around 10 or a little more for cutting, bump them up to 20 or so for bulking. Preferably healthier cheats though. Pizza with whole wheat crust. Lazagna with whole grain pasta. Beer in moderation... you get the idea.
If you just want to get totally ripped, then do this to reach 10% or so. Then drop the cheat weekends and do it very strict for 10-12 weeks. Drink 1-1.5 gallons of water each day and NEVER forget your fiber supplement.
Good luck to ya.