Welcome back! I have not read that book, but if you want a program that is more strength oriented but still maintains and improves conditioning, I highly recommend You Are Your Own Gym. It uses both linear and undulating periodization, which means you get a bit of everything. I'm here and not there as a result of my own weakness, not theirs. It separates body parts into their own days, or push, pull, abs, and legs, and I have a bad habit of wanting to skip legs if they are separate. So I chose to do a full body program instead. Also interesting, if using that book you created your own full body program, using the methods outlined you could actually arrive at the SF plan. Although it would usually favor more difficult variations for fewer reps on strength days. But there is a method used called Stappers, and it is the exact same thing as Day 1 here. Anyway, just wanted you to know. I am sorry for sounding like an ad.