after some messing around I think I just about got the fit just right. I learned a few things along the way, and it applies mainly for my head, but I'm sure this will useful regardless.
Dont extend the risers too far in an attempt to loosen the angle of the cups to create a better fit, just as you should not over shorten them. For me I found that you have to loosen them just to the point where any more and the headband wont be supporting the weight (because at that point the cups will slide lower on your face and the top of your ears will touch the inside). Also definitely rotate the pads back as Dan suggested, there is a certain sweet spot to hit. Easy way to find it is simply put them on your head, and with your thumbs find where your jaw-line is near the ear pad, and use your thumb as a marker when you take off the pad. Your thumb should be near the back corner of the pad to create the proper seal, as this is the thickest part of the whole pad, and since its a corner it nicely fills in that jaw-line gap. Rotate too far back and your ears wont fit right inside the cups, and rotate too far forward and the seal wont be right near your jaw-line. Also, and this is the more confusing sounding part, try not to angle the cup upwards (like the shape it makes when on the stand, the "V") too much because the weight of the headphones will start pressing too much on the pads and you'll feel more pressure as a result (could be desirable though), if you instead let the cup just settle in whatever angle it wants (least resistance) you will have a much more even spread of the pressure, you'll notice the difference right away.
Follow those tips, and give some time for the pads to soften up (I assume, still pretty fresh for me since its only been a few days), and you should be able to at least get pretty close to a good fit and seal with only minor adjustments to make from there.