Has any one had any success running anything other than the factory front bumper system? I have broken 2-3 and am looking for some ideas to replace it with something more resilient. I thought shoe-gooing the foam down to the CF would be enough, but there's not enough foam in front of the CF to reduce the impacts I manage to dish out enough. Thankfully I haven't broken any arms wheels etc, but the $20 bumper replacement is getting old . . .