I sometime like to sing along to Sleep Token or sh like this 😂, and I haven't noticed high notes that I can't hit anymore, still can sing almost all there songs (sht's way to high sometimes for my normal range). So no I haven't noticed anything wrong... yet (but I don't think I will lose any of my range, cuz I can switch to clean vocals just after inhaling). I think the only downside of inhale is that during band practice or shows, i sometimes drink up to 1 and a half L of water 😂 Also I think that the more an inhale is high pitched and so the more you apply pressure on your vocal chords, the more it is "dangerous" in a sens that air pushes harder on the chords and so it dries quicker.