Right! Seems DaveFarmer is a bit off in his assessment. Obviously because he has not seen them in action.
The Hooter is a spinnaker in essence and is designed to sail downwind. While it does not have the big shoulder that spinnakers have (I should say "had" since the modern spinnaker is looking more and more like a Hooter)you need to sail it a bit hotter than the standard spin.

It is also awesome on a reach.

And when the air lightens up, you can really sock it in tight and sail upwind as well, pointing just as high as with main, or main/jib and going faster. The secret is to keep the windward side telltales fluttering (if you keep them flowing you will not be able to point as high as you should)

hope this helps,
Rick