Yeah, I remember a Teflon tape debate on Arrma Forum with this very subject that many have had. Pillow balls are a high maintenance area for me on the Kraton EXB. I would get maybe a run or two in before the hub nuts w/o-rings loosened up enough to show signs of slop. Thankfully, the wheels spoke design allowed me to get in to tighten things up without taking the wheels off. I'm most certain the EXB would have been sold in quick fashion if it weren't for spokes



. Hot Racing has the hot ticket "fix".