Removeable North Sails spinnaker turtles

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We just purchased some North Sails spinnaker turtles. They are great and easy to install.
We use our Scots for both day sailing as well as club racing so we want to be able to remove and store them easily when not in use. To install them holes are drilled and the cords fed through and knotted behind the seats, which is very hard to reach. As a result removing and re-installing is not an easy process.
Does anyone have a suggestion for mounting and de-mounting these easily ?
 
 
 

The easiest is to leave them on all the time...  They come in handy for cruising.  Jackets, towels, even a spinnaker, can be stashed in them.
Dont mean to be a wise guy.