It's not hard to get them off (once you've done it a couple of times, that is), but it's quite hard to put them on.
Anyway, if you're able to attend the SF Bay Area meet that's happening the Sunday after this one, then I can let you try on my pair. See if you'll like the ear pads?
I suspect that you'll like the Fiio E12 more, though. Dang, I'm now inclined to believe the ES10 really needs quite a bit of amping power to shine.