Looks like Selden is making an off the shelf sprit that would work on Ericsons...
http://www.seldenmast.com/download.cfm?download=7837&webnode_id=3014&filename=595-261-E.pdf
Here are some shots of Coaster (1968 E23 Mk1) from last Saturday. This was the second time out with the new semi articulating stowable sprit. Works pretty well.
