Just been thinking about 3-4 day cycles. The uses I see are 1) If you're doing the Pete Sisco thing and working out once every couple weeks or more, placing your single workout on the second day of 4 days of prohormones might help, and 2) for the kind of athletic event that doesn't care about performance enhancers, rock climbing on a weekend or something. Mostly for the strength/endurance boost on the second one, there.
"Crazy, but it just might work?"
Or maybe just "Crazy."