I somehow missed this post. I will continue burning them in for a few days and see what happens. Unless they sell first lol. I'm definitely a burn-in 'believer' when I hear it, and not when I don't. I discovered HUGE changes with my K702, and pretty substantial changes as well with my Pro 900/2900, and AD2000s. In every instance I have heard noticeable changes within the first 24 hours with these cans-which leaves me a bit sceptical with the Fostex. But I will continue to listen with an open mind in the meantime-I don't have a horse in that particular race-like quite a few axe-grinding zealots on this site.
I wasen't talking about burn-in (this will probably be something I will just avoid commenting on in general). I'm talking about spending some time to get the know their sound signature more intimately before making a decision to let them go. First impressions can always lead to some bias, but the fact that are you are willing to listen with an open mind is excellent =)
These are a nice foil to the HD800's ~ but at the same time still very detailed. Give them a chance