Interesting. Here's an example of what I'm talking about, from our own classifieds right now (sized down a bit) ..
Anyway, this is not the only AV HotRod or ThinSkin I've seen with this case interior. It hardly matters .. if I buy an AV52RI the case will likely go in the closet and 99% of the time I'll be using one of those hybrid hardfoam gigbags. But just wondering if there's some system behind which models get the fancy red caseguts.