I agree with the circumaural comment. For such a small phone (considered to be supra-aural), the pads completely envelop my ears and it seems to be only a small "fold" on the rear-middle of my ears that ends up touching the drivers. I also find the cans (225's) to sound wonderful - nothing too bright beyond the Grado sound - and the bass and mids are excellent. This can vary depending on the recording though. I was listening to some very old Bo Diddley on the train this morning (less than ideal conditions) and the very old recording ended up sounding very hollowed out - increasing the volume got me almost no mids, screeching highs and sloppy bass. I know the noise from the train doesn't help, but with better recorded material this isn't a problem.
Sound aside, I must admit that the bowls grind after a while (still new though), so I'm thinking of trying a simple mod I read elsewhere until the pads break in. If you've read about it, basically you just take some very thin earphone replacement pads (from Radioshack), stretch them over the driver area and then pop the bowls back on. Allegedly offers a little relief from the treble and warms up the bass response (for those interested). For myself, it's exclusively for the purpose of enhancing comfort until the bowls wear in a little better and I can nab a real sweet spot. If nothing else, it should provide some relief from the hard drivers pressed against the cartilage.