Just got off the phone with import intelligence and they said they no longer make the 2step launch control unit due to low sales. However, they still service existing ones. I asked if they had any recommendations and they suggested the bee-r unit. But as Evan brought up, the n2mb is a good unit as well.
1990 Nissan 300ZXTT Stage III+ 11.96 e.t. 1.61 60ft on original stock turbos