I'm just curious, why are you switching to the Corsair?
Well, as I stated above, The only reason I am wanting the Corsair set is because they fit my head better for extended periods of gaming. I found that the shallower ear cups on the Megalodon don't fit me as well and tend to hurt my ears after a couple of hours.
One of my friends let me borrow his Corsair set to try out one night and I loved the way they fit much better. I was able to play BF3 for over 4 hours and never had the slightest bit of discomfort. The Megalodon generally starts to hurt my ears after about 2-3 hours. The only real difference is, I have a big head and larger ears, so the Megalodon with it's shallower ear cups are problematic for me. I love them otherwise and wouldn't give them up if not for this reason.
So I will be selling these and getting the Corsair. Both sets have their advantages. One just fits me better.