Q: I just started using the 4X methods. Great stuff. Loving the pumps, but I’m wondering if 4X is better for maximum muscle size or Downward-Progression 4X [adding weight each set so reps fall—12,10,8,6] – what’s the best muscle-growth method for me?

A: Both methods provide a powerful hypertrophic Density effect. That’s because you rest only 35 to 45 seconds between sets. That gets you to the critical growth threshold quickly… [Read more…]