Another technique I see T helms use is to place the extension on top of the shoulder and grasp it from below. Have only tried it once or twice but could not get used to the weird feel. Mike.
Practice and perfect this technique. Using the tiller overhand means you hinge at the elbow, underhand you have to use the shoulder. Hinging at the elbow is far more accurate and uses less energy.
On my last two boats (A cat and Tiger) I was able to rest the tiller on my shoulder to sheet with both hands. Unless your helm is way out of wack there should be enough friction against your shoulder to keep the boat going straight.
