The problem with these older bundles is that not one, but TWO holiday seasons gone by, during which they sold like crazy. Team fail0verflow waited too long to release it, and they didn't release enough information, which caused an additional delay of a few months before other devs could release anything useful. And even now, there isn't a "full" CFW implementation, only some debug settings. Finding a PS4 now on a low enough firmware is like finding a unicorn. All new ones are 4.07+.