Never had a problem..
Raising it on my 22. If you can't keep the sidestays on, then maybe they are too tight? You don't have to let them loose, just try loosening up the turnbuckles as much as you can. This should give you the play you need to lower and raise it, but still give you the stability to port and starboard.I do it by myself without any extra hands or tools. I raise it over the stern. If you aren't afraid of a little effort, you can do the same. Instead of using the pole contraption I just use myself instead. Place your foot against the base of the mast to give you some leverage, and with the back stay in place and the side stays slack enough to give you the room you need to bring it up, pull it up with the forestay. I also shove it up from behind sometimes, but this takes some fancy footwork to get out of the cockpit and onto the cabin roof.Of course this isn't for everyone. If you don't have the weight to keep it in place and the strength to haul it up, you might want to go with a setup like Mardon showed a link for!Josh