gaigai

For the past several years my Christmas Cactus has had three buds on almost every leaf, and almost always at least two. The first two photos are of the cactus last year. It was too leggy, so I trimmed it back, and now I don't have any three-bud leaves, but most are two. What causes the difference, anyone know?

Plus, up to this year, it always bloomed at Thanksgiving, but now it looks as if it will be a true Christmas Bloomer.