I'm just doing what I'm told, brotherman, and it's the first time I've ever waited this long between sets, too.
I'm coming from years on the OTS Big Beyond Belief and Serious Growth programs. Max rest on those is only 3 minutes and that always seemed like an eternity because I'd recover so quick, especially with phosphate loading and Cordyceps-M use.
With Rip's SS dealie-o, I'm barely breathing a bit over normal and never break a sweat. Yet, I'm jumping 5 lbs a lift every workout. We'll see how long this lasts.