I have a good many CC's i let my plants dry out a little before i water again, not dusty dry but i do let them go a little dry.Then i water them good from the bottom i set them in a pot of water until the top begins to look a little wet or the plant is noticeably heavier than it was when i put it into the pot of water.I don't drowned them.The sun will burn them i don't put mine outside unless it's a very well established plant and has slowly gotten used to the sun.
This is the first time i have given advice and not been asking for it.I hope the CC does good.It is a christmas cactus and not an easter cactus right?They are totally 2 different plants, but care pretty close.
GOOD LUCK