Well I bought a book today, Masdevallias-Gems of the Orchid World by Mary Gerritsen.
I previewed it on-line and the description sounds like just what I need. Culture for growing these beautiful plants underlights, CHECK.
It also describes and talks about all the different groups of Masdevallia. CHECK. This could be just what I need.
As a side note, I am starting to lose a few flowers under the lights. I am not sure why. Perhaps too dry, perhaps lights are too intense as the spikes elongate. I just don't know.
I have had a Paphiopedilum spike dry up and a second plant of 2 Coelogyne speciosa had the bud seemingly rot and abort.
It could be overall dryness as my humidity in another room measures 19%. But I'll need to figure this out. Maybe I need standing water in the trays. Maybe I need a small fan to move the air around.