got a pair, doing a lot of experiments and taking lots of (subpar) photos.
my pads came off really clean
i used a dull knife and stuck it under the plastic film that the foam is attached to. its easy to slip it under there if you don't start at a sharp angle, find the edge of the plastic and start putting pressure and a 90 degree angle (perpendicular from the driver) then do sort of a prying motion.
grills can't be reused? that sounds like a challenge
the trick is to pry up the tabs and get them at the right angle and then push out them out from the inside, going back and forth between the tabs until you've pushed out the entire grill. don't even touch the outside of the grill until you can't push the tabs out anymore. you should be able to get one side off, then you can GENTLY grip the sides of the grill and wiggle it around, pulling the remaining 2 tabs STRAIGHT off, don't do any prying or any of that.
when you put the grill back on, you have to stick the tabs back in the order that they were removed. if you get one side off first then the tabs on the other side will be bent outward a little more so they need to go in first
at least on mine, the fabric isn't actually glued down everywhere, so it wasn't too bad to remove it.
scraping away the excess with a knife. better to use a sharp razor blade, i took some of the plastic with it. other methods i considered:
lighting it on fire
using my safety razor and shaving it like i would shave my face
using adhesive remover (probably the cleanest option)
anyway it wasn't a big deal, came off pretty clean
i put the grills back on and listened with and without the grills (after removing the fabric) and didn't notice any difference.
next i wanted to try improving the low end a little
does anyone know what this little sticker over the back of the driver is?? i removed it, though i guess i shouldn't have. it didn't seem to make much of a difference. it occurred to me that it might be there to seal out dust or something.
next i did one of the common grado basshead mods:
HOLY HERTZ BATMAN
THIS IS LIKE A VIBRATING BRAIN MASSAGER
....seriously its WAY too much bass, seems pretty distorted. i wish i had a better ear, i produce but i don't know a lot about mixing. anyone have a guide on improving your ear for mixing/audiophile purposes? i've been listening some bjork off volta and homogenic and some of aphex twins new album as well as young montana. the treble actually seems a bit tinny to me and the high mids seem a little muffled.
anyway i want to try the felt/foam mod because my grados still have more clarity in the treble and soundstage for sure. i'm thinking maybe it will make the bass less distorted as it will reduce the seal around the pads/ears. i seem to remember some grado modders doing the opposite and increasing the bass by wrapping tape around the circumference of the pads to increase the seal. much more experimentation ahead.