Forgot about the WiFli feature of the Apex bits (and longer cage rival). In the end I think SRAM may have hurt themselves by offering too much on Red, making it very difficult to create a substantial improvement. Keep in mine that 7800->7900 was actually considered a downgrade by many, and except for hidden cabling, the entire latest generation of mechanical Shimano isn't heads/shoulders over the previous generation, only some carbon bits, and updated brakes. I would consider the latest SRAM Red offering to be similar in that it's a small incremental jump. Hopefully they are working on something bigger for the next few years.