Brian Nystrom wrote:

Feathercraft sells a takedown GP, but it's rather heavy. The problem is
that the only commercially available center ferrules are too small and
the wrong shape (round) for a GP loom.

On Qajaq USA, someone recently posted a link to a web site selling carbon fiber
sleeves of different sizes. These are carbon only, no resins. By stretching or
compressing the weave, you can vary the diameter somewhat compared to the
nominal diameter. As well, you can set its cross section to be oval or any
other shape. Add a little epoxy and you can make a custom ferrule for a GP.

Mike