I picked up some from Orchidbabies (about 4 years ago). They grew and flowered (poorly), and eventually burnt out, died. I had them in hydroton/moss/chc with oyster shell using a kind of semi hydro system. They were never great doer's and I attributed their "crankiness" to my overall high temps.
Now the ones I just got from OL (3months?) are still in the bark mix the came in, and although I water a lot, they are not in SH conditions. I have added some sand and "cichlid sand" as top dress. As you've probably noted from many of my other posts, I've restricted K supplementation, by reducing the MSU rate and adding Canitrate and epsom salts.
So far these are darkening up and growing leaves and roots much better than my previous experience with the OB plants.