I need help, my friend wants to order the new ggts. Without AVS. What does she exactly need? I don't understand this things with the different types of adjustable draw-caps. Please tell us, what we have to order for a ggts to use with 901/910/801-attys. An what about the usb-passtrough? Thanks. She wants very much to place the order.
easy when you know how I guess. 
