I am not familiar with the sound signature for the Hugo 2, together with the 2go, and I am not familiar with the sound signature for the BX2+, but I have seen that your DSHA3F amplifier had been developed for Focal headphones.Yes, either all the changes to my chain 'fixed' the problem, or my ears and brain burned in. Utopia still have more high frequency energy than any of my other cans, and there are times that I feel some instruments are over-emphasized. But I'm not finding them 'sharp' anymore, and I would attribute that to my amps. In fact as far as DACs go, my Gumbys are brighter than my Pontus was, so it must be the amps (or my ears/brain).
Did you stop utilising the Elex pads together with the Utopias when you had started utilising your DSHA3F?