I talked for a while with an orchid grower who grew up in Hong Kong. We talked about the climate in Yunan Province. Hot steamy summers, like Atlanta, or Louisville is the norm. Though the max temps in Yunan were only in the mid 90's, not the low 100's we get in the USA. There are a lot of heavy rain storms all summer. Winters are cool, usually at or above 40 F at night. Drizzly, foggy and damp. Rare but occasional snows occur, though the ground is never cold enough to freeze. Snow usually melts within a few hours. This grower's feeling was that the warm spell in summer may be more important than the cool spell in winter to tell the plants when to bloom. Don't take this anecdote as dogma, but do consider its relevance. I have not checked this agains Fowlie's old articles, nor against Lance Birk's observations. Need to do that.
**** I've had armeniacum for many years. The way I get 2 or 3 to bloom every year is to have 15 of them. My thought is that some clones simply do not bloom evey year. My best blooming plants tended to be the ones that produced multiple new growths every year. Grow them on to multi-growth clumps and you have a better chance of getting blooms. Don't divide your armeniacums down to single growths. If you are lucky to find a clone that blooms frequently and easily, cherish it and propagate it.
Good luck
Leo