I just replaced a Hood 810LD (line drive, continous loop) furler with a Hood Seafurl 5 (http://hoodyachtsystems.com/pdf%20files/253data.pdf
). The new one has independent swivels at the foot and head like a Harken MKIV. I haven't used it enough conditions to say if it is great or not, but so far it seems pretty good.
Hood gave me a good deal on it since my 810LD was failing (no longer could reef, only furl) and they no longer sell the upgrade kit for the 810.