Just recently it was selling my SR-225i and getting the SR-325is. What a mistake that was! Felt like I gave up some mids for more bass and treble. Then you had even worse comfort.
SR-225i is on my list to get again. It's mids are addicting. Probably tied with my DJ100 as my favorite mids of any headphone.
I also remember the ATH-AD2000 nightmare. Those pads...wow, what was Audio Technica thinking!
The Sextett I have is a piece of junk too. I got it to sound good maybe for about a half hour. Very muffled sounding. It's an LP, but sounds bass heavy and doesn't have enough treble.