I actually bought the v80, after a lot of praise from many, but the sibilance and treble was absolutely killing me. So glad you say this loud'n'clear here (if I understand you correct)

Thanks for the quick reply. I am a musician and producer playing drums (i need great isolation both on stage and in the studio when choosing microphones). Been using Shure se315, but got really tired of them eventually. Now I have as10 which are alright but gives me earfatigue over long...

What was your goal in the tuning? Would this work for highend studio work and IEM for musicians? Or does it have a more v shaped "fun" listening experience like many, many others?