4.4 to 3.5 bal arrived, tried mv1 with my qls qa361, gotta get some pads to experiment with, the treble is too strong, it's stopping me from playing at louder volumes like with the hd660s, I suspect the mv1 full potential is higher, just needs to lower the treble and up the mids.
will probably get a bunch of brainwavz pads to check
Update: ended up buying suede, velour, and hybrid from brainwavz. did not go for leather due to price and feeling odd about having animal skin around my ear, and did not go for pleather due to it's flakeyness