Is the gear you ordered forward swept?

These are great airplanes but they nose over taxiing on grass with gear located in the stock configuration. One guy I know totally rebuilt his Goldberg Extra landing gear mounts forward a couple of inches, which worked absolute miracles but that's a lot of surgery on an already completed airplane.

If your gear is not forward swept I suggest angling the gear forward by constructing a slight triangle of hardwood between the gear and the bottom of the fuse to splay the wheels forward.