Carb Cycling for Mass Gain

I am putting together my carb cycling plan and have a few questions. Using the Carb Cycling Codex my days come out as follows. The amount of carbs really doesnt seem to be that low for a “low” carb day though. What do you think?

Monday (HIGH CARB)
Workout: Chest + Triceps + ABS
Calories: 4,320
Protein:300g
Carbs: 375g
Fats 180g

Tuesday (LOW CARB)
Calories: 3,200
Protein: 300g
Carbs: 225g
Fats 122g

Wednesday (HIGH CARB)
Workout: Back + Biceps + ABS
Calories: 4,320
Protein:300g
Carbs: 375g
Fats 180g

Thursday (LOW CARB)
Calories: 3,200
Protein:300g
Carbs: 225g
Fats 122g

Friday (MODERATE CARB)
Workout: Legs + Traps + ABS
Calories: 4,000
Protein:300g
Carbs: 300g
Fats 180g

Saturday (LOW CARB)
Calories: 3,200
Protein:300g
Carbs: 225g
Fats 122g

Sunday (MODERATE CARB)
Calories: 3,500
Protein:300g
Carbs: 300g
Fats 122g