I'm more interested in the deadlifting than the benching, squatting and overhead pressing (the upper body stuff is more supplemental). If you're squatting a lot, it will likely affect your ability to sprint the next day. Deadlift doesn't tank me like squats do. And no, not always 5x5. 3x2, 4x1, 5x5, 5x3, 2x4...mix up the weights and reps.