I checked my 9303 2.4 on Friday just before going to a fun fly for the weekend. The chip / board had cut completely through the insulation on the red aileron wire and started to cut through the wire itself. We checked 5 more 9303 2.4's at the fun fly. The insulation on 3 of them was almost cut through to the wire. The other 2 we starting to chafe already. Steve