MAry and All,

1. The idea of 'removable' was interesting.

2. IF one were to make a fitting with rubber grommets and a 'pin'(s) to attach. Of course, it would have to be a nice job design to reduce induced turbulence.

3. IF this was possible, the one could fit to a rudder and/or a d-board.

..thanks again for a great line.

regards,
Bruce
St. Croix