So, in order to fill in some gaps that I left behind, here is my tutorial for the Witeden Super 3x3x5 cube. Now, there appears to be two of them, this is the one with split edges in the middle. Even scrambling can be a challenge with this one! The main challenge with solving is the process of reduction, and the possibility of parity. Once past that sticky point, it becomes a 3x3x3 solve.