Andy, would the plug in dimmer set-up help with marky's set-up? Also, not sure if you have this type of wire mesh fencing in UK but I made my own 3" high fencing and attached it to the plastic guard rails (hot glue gun) and the cars have stayed inside the ball park so far, as hard as my 10 yo grandson and his friends have tried. I understand about the crashing and I have the ARC One with the mechanical throttle stops but they don't like racing where they can't go fast / crash hard! Good luck. /media/tinymce_upload/6705e0eda7d2a25840e75f386937b867.jpg