nswsailor said..
One I have looked at is Reefurl.
Reefurl are cheap and nasty. The halliard system on them induces fore stay sag.
Another brand is the Alado from Brazil. They seem to be a good quality build but like the Reefurl the halliard sheave is on the top section of the foil and therefore induces fore stay sag.
Edit:- Link to Alado.
www.alado.com./