Weather helm not a tiller problem, David
If the boat and sails are not balanced, the helmsman/woman will have a hard time fighting the rudder (which, or course slows down the boat dramatically.) It is true that because a wheel may have more leverage (often not true in a 25-27 foot boat) and because you can more naturally bring two hands to bear, a wheel is a counter measure to an unbalanced rig.However, the causes of excessive weather helm can be eliminated in ways that do not continuously drag the rudder sideways through the water. There are some great discussions on how to do this in the archives. Search for "weather helm" to find them.If I were going to buy one piece of equipment to correct weather helm, it would be to replace a blown out mainsail. If the main is in good shape, then any good sailboat (this certainly includes the MacGregors) can be tuned and balanced to steer without the rudder in steady winds. Most of us prefer a little weather helm as a safety feature, and trimming for gusts and waves is the right use for the rudder.So I see a wheel as a valid choice for personal preference, or to assist a driver who can't handle a tiller for some reason.DavidLady Lillie