There is no way on earth that I can imagine anyone climbing the mast on a Capri 22 with a standard rig, let along a tall rig. The mast is very slender, the standing rigging is quite small, and the boat is Waayyy to tender. I know its a new boat for you. You will soon understand. My prior boat was a Pearson Flyer - not near the same as your J/120, and we used to send folks aloft for a variety of maintenance chores. On the CP22, drop the rig. Two adults can do it, and many have done it alone with a gin pole or a-frame set up.