Ive tryed mounting many orchids over the years and i always just end up putting them in a very open mix in a clay pot or basket. I grow in a basement grow room and the humidity is at 70%rh or above most of the time. I cant keep them growing on mounts even in those conditions. It is a chore to water twice a week as it is i could NOT imagine having to dunk or spray a mount ever again on a daily basis. And you doont need a mount to have a specimen of a typical 'creeping' orchid i have many specimen plants that just out grew and consumed the clay pots they were in, now they are a ball of orchid hanging from a hook and they look great.