The EBay Circuit (the kids named him “Copper”) Is getting some better runs in (now on 2s!). The last two runs, the left, and now the right steering block screws stripped out. Is that a weak point on ECX’s? It’s an older unit, so I’m thinking worn/brittle plastic? Just wondering… I suppose I should expect such breakage, but it like to run out 1 battery before it breaks!