I can't wait for the DD pads either! My ears hurt like hell after 30+ minutes of listening which is really unfortunate 'cause other than the comfort issue M-100 is my favorite portable. I don't even need the pads to be bigger, just deeper. When they compress after 10 minutes or so of being on your head the outermost parts of your ears will start to touch the drivers.
This is an issue for not only me, but all 4 of my friends who i let borrow my m-100.
glad to hear you're working on a solution Val, hopefully it doesn't affect the SQ