If you look at Andy Sinclair these days you will think he has "great" genetics, but the truth is more nuanced. In many ways Andy was a classic hardgainer, but he put in the work on a dedicated, proven programs, and the results paid off.
What is MET Training? Although it is designed for physique enhancement (adding muscle, losing fat, etc.) Metabolic Enhancement Training or "MET" training is a training approach that combines the physiological demands of movements from a variety of different sports. It is designed to improve the metabolism over time. It turns bodybuilders into athletes.
Innervation Training is a methodology of training developed by Scott for clients seeking physique enhancement. Most trainers in Scotts day developed training protocol based upon research of the musculoskeletal system. Scott departed from such traditional archaic thinking and developed his Innervation Training based on research to do with the neuromuscular system. While traditionalists of his day focused training methodologies on everything to do with strength and strength research, Innervation Training is based upon Intensity and all concepts to do with intensity, including but not limited to, strength concerns. Many new and innovative concepts were born from the Innervation Training Methodology and the number of champions it has produced from previously beginner athletes is a testament to its effectiveness. Think of Innervation Training and Functional training as two parallel one-way streets. Both involve, to the greatest extent, the concept of Intensity.