Did you ever use any of the TOTL Stantons, 681EEE or later the 881S ?Actually 4-8 khz is what will sound bright. Above that you usually do get airiness. I've always thought one reason MC cartridges sounded more transparent subjectively had to do with most of them having a resonance in the upper treble. One that just happened to un-EQ the slight droop that tape had which was the source of most LPs. I also remember more than once reviews of Shure cartridges (which usually had pretty flat response) described them as having tape-like highs. Well if accurate that is exactly how it should have sounded.
With the ultra light weight arm on my HK linear tracker I preferred the high compliance, light weight Stanton's in my system..
They would track perfectly at 1g and sounded wonderful to me. I appreciated the individual testing spec sheet or chart that came with each.
Unless it was BS, it showed individual attention to each one sold.
I tried a Shure V15 at one time, don't remember the exact generation, but ended up returning it to my very nice dealer for a 881S.