Just did this last week. Reset the break flush together and the ductape or superglue/nuskin it to keep it together. Place something under the branch to support it if needed. It should heal up very fast, mine healed up in about 4 hours. A week later and she is much larger than her twin on the other side of the main stem. I noticed the break also causes non-symmetry on that branch in the future growth points. I didn't notice any drooping or slowing of growth.