I purchased 2 of them through the HRP sale. First race this past weekend (VTA and USGT) Qualified 4th VTA and 5th USGT a-mains (Club points race with 70+ entries). Used the basic X-ray carpet set-up and they were both competitive out of the box. The car is an X-ray clone, most X-ray parts will fit and X-ray set ups will apply. I am extremely happy with the car. You do need to work on getting the Gear Diff set right during build. Other than that everything went together great. I was running the Schumacher MI-5 prior to these.