I am currently running phase 2 (slow and steady) now. I recently completed a fat loss snatch program by Chris Lopez (excellent by the way, the "Rex" program) and two days a week re-ran phase one of Strong. I actually had been doing that before I started "Rex".
Anyhow I'm for now just concentrating on phase 2 and am 4 workouts in. Going to hit number 5 today or possibly tomorrow if I dont have time. (Spring yardwork, getting ready for Memorial day party).
I'm not going totally crazy here and am using my head. I manage the multiple 3 rep sets just fine with holding the rest periods to 2 minutes or less. With higher rep sets (even just one more rep !) as the workout progresses requires a bit more recovery for me. (Gee, shoot me I'm in my mid fifties!) I am allowing myself 3 minutes between sets. At one time Geoff told me that was acceptable and to work on cutting the rest slowly as I progress through the system. Despite that advice, I pushed on and got injured!
I have gone through 2 of the 4 rep set workouts so far and I can say it's been pretty good. I forgot how much "fun" can be packed into 25 to 30 minutes!