The best growth I have seen in years has been by performing full body workouts 5 days a week with hard conditioning after. The way this works is Monday upper body day and Tuesday lower body day is high intensity, low reps for the major muscle groups. The basic compounds lifts are at 5x3. The rest of the body gets hit and they are done with higher rep ranges with minimal rest time between sets. I do only a little arm work; sets of three for rep ranges of 3-5.
Thursday rolls around and I go to a more conventional bodybuilder routine. Higher volume, higher rep ranges and different exercises. This isimilar to my Monday/Tuesday work with the rest of the body getting hit on both days.
Saturday is an optional day, usually working on the weak areas and performing heavy carries or sled work.
Inside of my workouts, I will utilize time under tension techniques, such as cluster sets, drop sets, 20 rep front/back squats (twice weekly) and some rest/pause work, first sets last. I vary depending on my energy levels and at times, I will not do anything else but the required lifts.
What types of techniques and workouts do you use?