MK3 Arakyd Droid Callers

You do realize that the Mk 3 callers periodically appear in shipments AND can be farmed from the 6 energy normal node? With one shipment purchase and applying both 50 crystal energy refreshes I farmed about 30 callers just yesterday. It's all about setting priorities and making choices ... and, after all, a big part of the game's raison d'être is the grind. All that being said, a gear exchange would be very welcome and enable us to do something with all the unneeded gear ...