Hi Ross. So glad to meet another orchid enthusiast.
I've been on a Bulbo kick for the last few months. Only have around 10 with one due to arrive any day now....love that ebay!
None of mine are mounted though I hear they thrive on mounts. I've got them potted several ways, some in sphag/coco chips/chopped tree fern, some in bark/coir and all in open slit pots or Vanda baskets (lined with coco husk). Light requirements vary for flowering but all (except ramossi which I can't get right) are all heavy water lovers and heavy fertilizing.
How did you kill the moniliforme? Too much/too little water/light?