As I reorganize my situation I see that I still have the very attractive and comfortable Sony F1's left lying around.
With the right power behind it and positioned correctly upon the head, these are very nice headphones. I'm willing to take a loss on them because I hate to have redundant gear and I already have the HP2's covering my dynamic listening needs. Price is $150 shipped. For trades I am still interested in a Stax headset of the full size variety, plus of course I would add cash on top of the F1's. Cummon ze-ant!