I sail a C25 and heaving to works best for me with the genny completely furled, the main in tight, boom centered. I like this method better because it saves wear and tear on the head sail and the boat stands straighter. I've done this with the main reefed with the same results.
But where's the rudder? Hard to leeward? Hard to windward? Centered? Somewhere in between?
On my boat, the tiller ends up slightly windward/ rudder slightly lee. It takes a minute or two to balance but with the sail centered my boat wants to round up. Once things have settled down I lash the tiller to a cleat with a cow hitch.
I've never used this technique in a storm so I can't comment on that. I use it for taking a break, cooking dinner and then I get going again.