Resting orchids in semi hydro

[cnarciso]

So after reading a lot of positive accounts of semi-hydro both here and on Ray's fantastic website I decided to try a little semi-hydro experiment with some of my paphs to see how it would work for me. However, some paphs require a drier winter rest (read: most parvis), of which I have a few. So my question is, how can plants in semi hydroponics be rested if the LECA medium should never be allowed to dry out? Anyone have any tips and wanna chime in? Are these types of plants simply unsuitable for semi hydro or is there some trick to giving them the rest they need to not die off in a couple years?

It is my goal to eventually move all of my paphs over to semi hydro if this little experiment works out since I have trouble keeping their medium uniformly moist.