I own a Nicholson 33 and I have to agree that it takes a steady hand on the helm to keep it on course unless you are close hauled. It is the only point of sail that you don't have to keep your hand constantly on the tiller. She will wander off course quickly if you take your hand off the tiller when sailing off the wind. That is why I have an electric autopilot that works on a compass setting that works great if you are not in a confined waterway.
Otherwise it is a great sailboat and only needs a good dodger to be reasonably comfortable to take you cruising. We recently took 3rd place at Charleston Race Week in the non-spinnaker class against 41' sailboats and a water-ballasted rocket ship.
Nicholson 33 #19