Just took out my FX40s from their cotton and hardcase cocoon where they have been burning in for the past three days and had a listen. They are starting to sound closer to the RE-252s that I owned previously. Very accurate and neutral. A blank canvas on which the music paints it's scene which I can see in my mind's eye. Very responsive to EQ'ing should I ever need a little extra bass. Speaking of extra bass, the bass that is there is tight and excellently presented. The treble isn't as piercing as it was when I first listened to them from the box. The midrange is beautiful. It's like a pair of budget RE-252s although the lower sensitivity means it's not as 'fast' as the RE-252s were.
Speaking of the RE-252s, the FX40s feel like they are raping my ears as well (especially the right). This time however, the UE tips that I got from pianist, no longer afford me any comfort like they did with the RE-252s. I think might have to create my own 'hybrid' tips for these. 
Edited by Soul_Est - 6/7/12 at 8:59am