Berardi's Massive Eating "lean" protocol is like this: if you eat 6-meals in a day. Your first three meals would be P&C and the last three meals, P&F.
This was just a rough breakdown, btw.
As for "lean strength athletes", such strongman competitors like Pudzianowski perform alot of HIIT as part of their regular training regimen. Strongman demands not only just strength but conditioning. You need explosiveness/speed in alot of the events; so bare strength can only take you so far.
The HIIT that Pudzianowski and other European strongman do maintains their BF levels as well. BUT that's just a nice side benefit. It's the conditioning that's the true benefit.