I just ordered a JR DMSS receiver and NX servos from JR America.
All the transmitters XG6, XG8, XG14, and 28X, and most receivers seem to be in stock.
Horizon appears to be no longer getting new JR stuff. So when I see "discontinued"
on the Horizon site I assume it means Horizon is no longer selling it, not that it
necessarily means the item is no longer manufactured.