jennifer,
After much complaining from me crews I learned myself to steer the boat with the tiller resting on my shoulder.
This seems to work very well when the skipper in inboard and the crew is in the trapeze. The tiller extention is still pointing outwards but also flying 3 ft above the head of teh crew and therefor well away. It also helps in not hitting the bouys.
Of course when double trapping there is no issue and any grip will work here.
I just though this technic could be helpfull.
Regards,
Wouter