Hmm, interesting other people don't seem to notice a difference, but I feel like the Shures take out the "air" from my recordings, I guess an attenuation in the upper frequencies. The recordings don't sound bad by any means, just don't seem to breathe as much, losing the very high end shimmer and what is otherwise the almost inaudible decay of cymbals, etc.
That said, I switched to the DPA screens to get that air back and found they don't cut it with the wind you sometimes get at Red Rocks. I've picked up another pair of the Shures and will be running them on the rocks.