I demoed a pair of B&W P3s at an Apple store a while back. Wasn't particular impressed overall; the mids was muddy and the treble distant-sounding, but I was struck by how comfortable and lightweight they were - I have a history of not being able to tolerate on-ear headphones for long periods of time, but these felt quite good while maintaining a secure fit on the head. I thought it might be quite a good backup pair of headphones for portable use when CIEMs are too much of a hassle.

Found one for sale on the Head-Fi forums at a very reasonable price and snapped it up to give it a shot at home. Sounds about the same as I remember it to, started playing with it and the AK100's equalizer. I looked up a graph of the P3s and just took a look at how big the dips here and there were, then guesstimated the EQ changes and listened to songs I'm familiar with. After some adjustments, it sounds pretty tolerable. I can likely live with this for casual listening time at work and on walks.

Curiosity is sinking in, and I'm wondering if there's a more scientific approach to doing this with the limited EQ options the AK100 provides.