I've always stuck with a 5 day workout routine. My Max-OT routine is 5 days/week (Legs, Chest, Biceps/Abs, Triceps/Delts, and Back). My (first and only) HST routine was also 5 days, with a 2 day rotation with:
Monday, Wednesday, Friday
Incline DB
Weighted Pullups
Weighted Dips
Smythe Military...