I did a little searching too and its hard to find any info on this. I would love to get some shells to use for personal use. Everything regarding racing does not revolve around ROAR. I have some choice words for that organization but for the sake of the kids, ill keep it g rated. A lot of clubs allow people to run batteries for some races that are not ROAR approved. Also, just because its a hard shell, doesn't mean its gonna be used in racing or in an RC car at all. I appreciate the effort anyways..