Your rep ranges will be best optimized not by blanket figures, but by doing some muscle fiber testing, and determining yor fast twitch, slow twitch and mixed muscle groups. I do somewaht lower reps for chest, delts, and biceps as they tested fast twitch, a slighlty higher rep range for back as that tested mixed and higher for legs as that tested slower. I do, say 5-7 for the first, 6-10 for the second and 8-12 for the third. This doesn't suddenly change when cutting up, but the diet sure does. Cardio becomes a factor then too.