Duncans Donuts said:
I'd rather do whatever works best, instead of whatever works.
Despite my philosophy, I'm always trying to better the routine. Prolly the best way to go about things, despite what you believe
That is sensible. Far from my typical thinking. Personally, I am happy with pretty much any routine that is producing good results, be that increases in limit strength, endurance strength, speed strength, hypertrophy, partitioning, fat oxidation, you name it. Progress is what I am after. Since my main goal is not purely strength or purely hypertrophy or purely anything, this works well for me. I am usually making some sort of progress.
What appeals to me most about super high volume training is the rather large caloric costs associated with it compared to lower volume work both during and especially post exercise. For someone that wants to eat as many calories as possible and doesn't like cardio so much, I think this approach can work well. The high volume virtually necessitates a much higher than normal caloric intake (fine by me!). Partitioning should improve.
I was reading the archives in the power&bulk the other day, and came across a fellow who advocated doing as much physical work as possible lifting while still making consistent strength gains. I know Dan John (for those of you that know him) believes strongly in the ability of the body to adapt to pretty amazing amounts of stress given time. Many Olifters also train with very high frequency and volume. Basic idea of building work capacity over time. From my experience with increased volume over the last month (nothing like Layne is doing), my endurance strength has improved dramatically and that is quite pleasant.
For someone at a higher bodyweight, that sort of conditioning can really increase fitness and the ability to maintain intensity in the weight room. I have looked over Layne's log also and it is awesome motivation! I believe he is making sure not to lose a significant amount of strength. So long as he is gaining, overtraining isn't as big of a risk.
Gene suggested taking longer rest breaks between sets on such a super-high volume routine to maintain maximal strength capacity and thus the ability to overload the muscle fibers to a greater extent. Even with time saving tricks like supersetting, I think the workouts used are bordering on 1.5-2 hour sessions. Frequency of bodyparts is still 2x per week. Intensity relative to 1RM must be the thing that is moderated to some extent by necessity.