CDI
I have the CDI on my Oday 23. Never a problem, and you don't have to worry about the halyard twisting on the upper swivel because there is no upper swivel. Great unit. Some good advice in the previous posts. You can use your existing jib, just have the proper sized tape sewn in, as well as a foam luff. When I first put in the furler, I also had my existing 100% jib modified for the unit. I used the existing fixed jib sheet blocks. A few years later I bought a new 135 jib. I could no longer use the fixed sheet blocks as they were way too far forward. Fortunately, my boat has other blocks further aft (I think for spinnaker work) which I use. I bought my sails and furler from a local sailmaker. I wound up paying more, but it was very worth it to me, as I got to go into a store and talk to an actual person. He also came to my boat, measured for the sails, and also installed them and gave me instruction on how to best use their features. Best of all, I knew he is right here if I ever have problem. You can pay less for internet sails, but I like the deal I got.Another vote here for the Davis Tiller Tamer. I use mine all the time; its the best $25 gadget I ever bought for the boat. You will have to invest in a couple of cleats to hold the control lines, but my unit has lasted for four or five years now with no problems.