I have a chance to buy this stringing machine. Since I never touch a stringing machine, so I need your help. What I know: + this is a basic drop weight Gamma progression model. + it is probably previous model before the current Gamma progression II sold in TW. All the tools in the picture are included and I saw: + 1 starting clamp + 1 flying clamp that looks like Klippermate ??? Here are questions: + what are two big clamp ? are they also flying clamp ? + are all the tools in the pics enough for doing a proper stringing job ? + if not, what else do I need ? + what more do I need to know about the machine ? + is it worth buying used or buy the new Gamma x2, Klippermate Time sensitive, any help would be great. Thanks a bunch.