I think it's zero throttle, full aeleron/ rudder into the spin, ....
lol, I can do it , just can't describe it.
just remember to let off the rudder after your out of the stall, I spun a pony 20k once.Kept almost recovering then would snap agian, recover, snap agian. When I hit the dirt I relaxed and took my feet off the pedels,I noticed I had held full left deflction all the way down .