Propellerhead: I have a Harken, not a CDI, but the principles may be similar. I don't trail-sail, leave boat in all summer, so I only do the mast work once up/down per season.
I remove the jib before I lower the mast, and then after I use the jib halyard to pin the mast forward with a block and tackle, I remove the furler drum assembly. In the Harken the drum is the turnbuckle, so that involves unscrewing the drum from the studs (one on the forestay, other pinned to chain plate/extension tang). I loosen the two sets of sidestays, so when I raise the mast next season I am able to attach the drum and tighten the forestay; of course, I have to go through the process of adjusting shroud tension and length each mast raising (I suppose I could mark the threads, but have not yet bothered). I could easily unpin the foil at the top after lowering, as Dennis notes, but since I only have to move the boat about 1/4 mile to the storage yard, I don't bother - without the drum attached, the foil isn't really much in the way.
The first year or two I had the boat, I did not remove the drum from the forestay, and damaged a foil connector as a result. As the yard guys helped slide the mast forward toward the pulpit, the drum jammed against a stanchion and caused the foil to bend as they pushed (and then really pushed) on it, and a connector snapped. Luckily, parts were available (this is a '91 boat) and I was able to repair it myself for a very small amount of (boat) bucks. Think about that if you go with a furler.