I'm sure that it can work really well, especially John's Workouts have grown a lot of muscle mass on thousands upon thousands of lifters, Amateurs and Pros alike. John wasn't sought after for nothing, he really knew his craft, and I still don't think any one else comes close to his ingenuity, experience, and clever way of sequencing workouts to give you results. I still watch his Videos to this day, and throw in some of his workouts in my routine once in a while. I was more into high volume and high frequency in my younger years, I switched to this low frequency, high effort, high intensity style inspired by JP, DC and Yates relatively recently, like 2-3 years. And man, it is just so much fun chasing the numbers and beating the log book! It gives me something tenable and to track, something to work for instead of just feeling pumped up, which is more subjective.
In the End, I am just an amateur meathead, I'm good with looking big to the normal lay person, being strong - and just having fun in the gym. Since I don't compete, I don't really have to care about looking good on stage
, you know what I mean? A pro has to think about his workout and yearly plan a lot more in detail, and work on his weak spots etc, to give a convincing presentation on stage next to other big shredded bodybuilders. I just want to look big and jacked next to my wrestling dudes
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Because I gotta be honest, if I am not having fun with a routine, I just won't stick to it.