EX1000 is a hit and miss type of iem's, and if you are one of those lucky guys who got hit you are pretty much done with upgrading (if not downgrading) iem's. :)
If you can get an open/neutral/transparent/clean source for your EX1000, then you are likely one of those lucky guys (like me :) who will get hit ridiculously hard.
Now, I have like-new 4.Ai to trade for your EX1000 if anyone is interested.
Edited by DMinor - 1/24/14 at 4:47pm