Hi Jasen, what's your secret.....other than living in Florida!
I've had a Phaius tankervilleae for years and it's never done a thing. It puts out a few new leaves but just as many die off so it doesn't really get any bigger. Of course it's never flowered.
What culture do they like, light, water, fertilizing etc?
It has a tiny growth on the side of the bulb at the moment, I don't suppose it could be a spike? Where do the spikes generate from on the plant?
Marion from Oz