Anyone know if HB plans to offer a better diff screw kit like they now offer as optional on their D4 buggy? With carpet season right around the corner, the diff screw is subject to alot more stress and I have found it to be the one weak link in the car. On asphalt the car/diff is killer but with the added traction of carpet, brushless motors, and tighter diff settings required, the diff screw still breaks even with all the tips and tricks posted in previous posts.