the reps scheme for adding mass is 6-12 reps, for gainning strength 3-5 and for power 1-3. I feel it is beneficial to go through all lifting cycles starting with mass, unless your are a performance athlete then you want to stick with strength and power, adding mass may prohibit optimal performance depending on your sport. I your are lifting for recreation then all cycles are open field. If your goal is mass only then your reps should not drop below 6, if your are going for strength stay at 5 reps and if you want raw power use from 90% up to your 1rm. Some words of caution, never try your max without a spotter and never stay on the power phase for more than 2 weeks, any longer and your max will actually go down. How do I know this, because I recently suffered a 15 pound drop in my max from 405lbs to 390lbs, benching max for 4 straight weeks. I hope this has been helpful to anyone who reads this, I will check the forum 3 times per week so if I have helped anyone in any way hit me up, l'll reply to any one .