Yeah I actually like the grey pads more since the white pads are whiter than the ear cups' colour.
Does anyone with the m-100 know if the hinge in the headphone look like it's going to start to get loosened in the future? That's what happens with most headphones that fold like that, that's why I'm wondering, and its usually why portable headphones are the first ones to break, but I don't know about this one because of it's "click-fold Hinges"
I don't foresee the hinge mechanism breaking any time soon. The hinge itself is screwed in place (with the same hex screws as the shields' screws) onto both moving parts of the headphone.
If it were to break, either the metal parts would have to break since there is no plastic in the vicinity, or the screws would have to break which would be nearly impossible since they would have to undergo a considerable amount of shear force before fracturing (this force happens when you pull the earcups downward).
So far from my experience, the weakest structure on the headphone is the adjustable headband slider, which is where all of my other headphones have broke in the past.
From my M-100 experiences post: