Like I said it IS a question of taste otherwise all HF would sound the same. By doing the easy modification of the 1 A (mostly used for the 1 R, who benefit probably more from it) , the bass is less lay back, it becomes faster, and even to my taste a slightly too punchy.
I had Audio Technica's, the ATH ES 7. These were brighter, but also had a good natural bass, and was a good compromise. I even bought them twice, but they let me down, as the cord is not detachable. Shame.
I really had a hard time replacing them. THe MSR 7, was nowhere to be listened, tried different one's in shop. Not was such a fan of the Momento's, or others I tried. Like I said with the Sony's the aap 100 is for me a disaster in dynamics. The 1 A, still got my attention, as it is so musical, and you can have it on your head for such a long time without fatigue. I just not liked the Bass, but the mids/voices are wonderful. Again with the modification, the Bass is now faster. Are they better then before? I don't know, maybe they sing a bit less.
The MSR 7, I had finally the occasion to hear them at the airport of Bangkok. I even tried two pair. Both had to my taste really too much agression in the high notes, and voices were more regressed then with the 1 A. I not see me listening to that for hours.
Also, even if you like that sound, you should maybe approach listening to head phones a different way as speakers. For me HF's are there when I cannot listen to music any other way. SO they better be comfortable, and not tiring, even if that means you will have some less detail in the high notes......But liek I said the ATH ES 7, for me had both.