I would add that the problem may not be the level of higher frequency energy, but that something is standing in the way of resolving the separation between all those sounds. I have found that with my setup as I have improved cabling, the high frequency energy is still there, but it's better resolved, so doesn't overwhelm, but actually provides enhanced experience because the cymbals aren't all combining together with atmospheric effects and so forth. No more ringing overhang and "wall of sound", but more of an entire soundscape. And yes, Dave's cables have been an important part of the solution for me. Good stuff at reasonable prices as far as I can tell. Without my cable upgrades, I would have high end components that still were sounding somewhat muddled or brash, depending on the recording.
But I have been finding power cables to be as much, or even more influential than interconnects and speaker cables. It's a lot of variables. While I understand where Dave is coming from about not "tuning" using cabling, you have to look to reduce the variables somewhere if you're trying to optimize. For me, I've found some pretty good synergy with some components and my current speakers, and playing around with cabling has been productive in optimizing the sound. But I'm just playing around with a couple of Dave's models of interconnects and a couple power cords with opposing characteristics. So, it's down to a 2X2 matrix in my current trials, which is do-able in terms of A/B/C/D listening sessions.
