Topping Lift
I have an 18.5 and it does have a topping lift. Mine is a permanent line tied off at the top of the mast with two clips at the boom end. One clip is at the bitter end and the other about 10 to 12" above that. I attach both clips to the end of the boom. The upper clip is positioned to hold the boom perpendicular to the mast and is used when the sail is down. Once the mainsail is hauled up the mast I release the upper clip and let the line hang loose, the end clip keeps it attached to the boom. The slack in the line is enough not to have an effect on the roach of the sail. When you are going to take down the sail, loosen the main sheet, replace the upper clip and drop the sail. This has worked very well for me.