I have been tweeting the sound since I got them, so it's hard for me to say yes or no to your question .
I was going to pick up a green pair to compare but Im pretty satisfied with what the stainless can do .
I have tried many different ear tips and all have changed the sound for good or bad .
Have tried the Opus 1 and Opus 2 players , quite a difference in sound , both sound great .
I still got some Comply tips and some from Penon audio still coming .
Best change has been the Reference 8 cable, wow , can't believe a cable could change the sound that much ! Wont be going back to the Litz !
Im taking the whole lot on vacation in a few weeks, I should be pretty much done with playing around and get some serious listening done .
I think by the time I get back from my cruise Ill have the best sound Im going to get .