Ultra 4 Plus spin down question

Although my NAS is situated in a very well ventilated area, until a fix is announced I have started shutting down the NAS when I shut down my computer or know that I will not be using the system for longer periods of time. Obviously this is a pain but I cannot afford, as rlkyle points out, to have these drives spin themselves to death prematurely. I don't believe this was an issue with the Ultra 2 Plus that I upgraded from but that was my first NAS and I may not have been paying as much attention to the spin down of the drives. I too hope a fix comes down soon.