I have used both "Special VFR" and "Helicopter VFR" on many occasions. If you are flying coastal or in an area you know it's not tooo bad. If you are in a new area it can be a bit challenging, especially if you are planning on crossing ridgelines or there are towers power lines around. Clear of cloud can be a very subjective process. Oh and just a tip, make sure you know speeds for best maneuvering and know how to safely perform a min radius turn!!!