Thanks!
Since switching to the gym (around day 160), I stopped doing the 6 days a week program. I do Mon-Fri, and then boxing on Sat.
The most notable changes are cutting cardio (plyo etc.) from my workouts, as well as yoga (don't have the time with school/work taking up 16-18 hours a day). I still do 10 minutes of light jogging around the track, and stretching before/after workout but that's it.
Mon - Arms/Abs
Tues - Shoulders/Chest
Wed - Legs/Back/Abs
Thu - Chest/Triceps
Fri - Back/Biceps/Abs
Sat - Boxing
I basically took all of the exercises from p90x and combined/divided them in to groups for my 5 day split. I have added a few machine exercises like lat pull downs, but I still stick to dumbbells for the most part, just heavier weights.
To get down to 8%, I just stuck with the program and also switched to IF which I still do now (Lean Gains approach, but I don't follow the macros, just timing). I eat from 2pm - 10pm. I stayed at a caloric deficit of around 300 calories (daily net calories, I ate back my workout calories).
Now I eat at a net caloric surplus of around 350 calories, but still follow IF which I think is really helping with keeping me lean while I build size. I take in about 2700 calories now because of the huge jump in activity level. My macros have switched from primarily protein and low carbs, to higher carb, medium protein, low fat. They are roughly 45% Carbs, 35% Protein, 20% fat, but I don't really follow it too closely. As long as I'm in my calorie range and eating as clean as I can, I don't worry too much about the details.