Furler Choices
I just replaced mine last year, 1981 H30. I was satisfied with the old unit, a CDI 7-9 I believe. We are fair-weather coastal cruisers and have a 150 genoa and North gennaker for head sails. Our old unit died of old age and we got the current replacement drum offered by CDI. It is a much improved product over the original but unfortunately larger. The dimensional differences, not disclosed by CDI, were a lower position on the headstay and larger diameter drum. The lower position resulted in blocking access to the tack hooks on the deck and the drum was too close to the lower rail of the pulpit. It cost about $700 to have extension links placed under the drum, the forestay shortened accordingly, and the pulpit enlarged to accomodate the drum. Although not thankful for all the hassle, I believe the CDI unit to be a good choice for someone using a boat as we do.There are other factors to consider however. The CDI unit uses a built-in stainless wire halyard. When the sail is removed for mast-up winter storage or a sail change, a messenger is required to secure the connection to the halyard. If a smaller head sail were to be put up, a longer halyard extension would have to be affixed prior to raising it. This makes use of a second sail for other purposes very difficult. There is a second slot in the foil used for the halyard. I'm not sure if a second genoa, raised with a true jib halyard, for sailing wing and wing for example, could be raised at all , or far enough to work. In any case, I suspect a second sail would have to be smaller enough to cause some imbalance problems.I would not recommend the CDI unit for anyone considering serious racing or any offshore cruising requiring foresail changes for performance or safety considerations.