Bill,

Are you using a double block with becket attached to the boom tang or are there 2 single blocks attached to the boom?
(looks like a double from the line spacing.) What type and size blocks are they?

Do you find any problem with leach tension using the traveler on a flat track and controling via the swivel base. I read somewhere that the swivel base setup could put extra tension on the leech unless the track ends were curved upward. Afraid I can't quite grasp the concept ... having so little sailing experience.

Is that the small swivel base for use with a 2.25" (harken) single?

Inquiring minds... By the way ... Is there a good reference as to where & how to attach all the bits of standing (& original running) gear on the Ariel?????