I like to hoard the equipment dropped on Zheng Shi to sell. I used to be able to sell all of the equipment (Jumper Jumpsuit, Slutty Jumper Jumpsuit, Augment-Weave Armour, Star Viper Slutwear, Heavy Slut Ray, Shock Baton) to Rivet on Dhaal, but for some reason the Jumper Jumpsuit can't be sold there anymore, while I've still been able to sell the rest of it.