Well, I mean the last time I owned an ltd was over 10 years ago (2005) and I got the boutique bug, I'm sure I'm remembering it right especially on the viper because the earvana nuts that used to come with them were pre-radius to 12"(slots can be filed though) BUT I don't have the best memory. It does make sense to me because a flatter radius would allow a marginally thinner board and more yield over thousands of boards.(them changing it to a flatter radius that is)