The CRP (Custom Racing Products) and Pro-Line Kydex Nerf Wings are great hop-ups for vintage and rere (re-release) Tamiya R/C model vehicles on the ORV (Off-Road Vehicle) chassis like the BRAT, Lancia 037 Rally, and the Frog. But since you have to use screws to mount it to your battery door, what's the danger to your batteries? To remove this danger we aren't going to wing it, but unscrew the chemical mysteries in the plastics involved and give you several solutions to make it work safely, even for LiPo (Lithium Polymer) batteries in this episode of the RC Deep Dive podcast.