Keen eye! The Hero and MKII units have a customized version of the Ares II cable. The termination and wire is the same as Ares II whereas the y-split and 2-pin barrel is shared with the Maestro. We've stressed very heavily to Effect that the old barrel designs weren't cutting it for touring use and they suggested this design as it's overmolded and should be able to endure the rigors of pro use.
As for the subtle manipulation, while I can't speak on behalf of other manufacturers I can confidently say it's not true in our case. Our cost of the cable is accounted into the MSRP, not the MSRP of the cable itself. We'd love to throw in a basic cable if we didn't believe it didn't make a difference but we believe it does and we love working with like-minded bespoke manufacturers that are as passionate about their craft as much as we are. We often only have one chance to impress you, the auditioners, and we definitely want to give you all the best we possibly can.
While I know cables are a controversial subject on here there are elements of the FR that are enhanced enough for us to find a reason to include it. We wanted to give the best possible package out of the box we could. Anything outside of that is purely preference to the enhancements (aesthetically or sonically) you desire. I think once Odin and Hero are out in the wild many find what brilliant synergy these IEMs have with their included cables.
I think
@twister6 and
@WayneWoondirts can vouch for this as well