Great review, I agree with everything you said!
I have another suggestion for an after market cable. Sky Audio Cables on eBay makes some really nice soft paracord cables, when I still had the Elex I got one like the below picture:
I also want to say that the image clarity is just amazing on these headphones. I heard this with the Elex and OG Clear too, but I think the MG takes it to another level. With well recorded songs, it sounds like you have real live instruments directly in front of you. It really doesn't sound like a driver reproducing the sound anymore, it sounds like the real thing. This is especially noticeable with stuff like bells, chimes, piano, and cymbals. And the improved frequency response of the MG only adds to this realism. I do agree with some that the MG is warmer than I'm used to, and with bright recordings it is perfect. But for some warm recordings, I like to use EQ to bump up the lower treble and upper mids. It gives you more of that Sennheiser intimate vocals feel to it.