Using power factor training you will be able to calculate a precise power factor and power index for each exercise you perform and for your entire workout. You will be able to calculate ahead of time what workout you will be required to perform next time out in order to meet your goals of increased size and strenght. This means that every workout can pay off in gains; if it doesn't, you will know why you fell short. You may, for example, find that your power shrug power went down 7% even when your bench press went up 34 percent and your overall power index went up 200 points. To get a good understanding, you need to buy the book, you will need the charts and formula's anyhow. My full range did not go up that much after doing power factor training, but each week, I was increasing the weights so I was much stronger. All my bodyparts were bigger after doing Pf training. The only drawback was keeping the records, they were time consuming and you needed a stop watch to record the time to complete each set. You only do one set, anything more and you would be overtraining. Here's my bench results, started pushing 330 lbs for 20 reps and finished program pushing 620 pounds for 20 reps. Your weak range of motion, for example when the barbell is resting on your chest, will not increase because your no longer taxing the muscles in that range. Remember because you will be working out in your strong range of motions, you should be able to start off pushing a lot more weight. Good luuck bro, if you give it a try. I alternate each week between full range and partical range, to get the best of both worlds. It does work and makes alot of sense. Almost everything you do in life is at your strong range of motion.