Nah there's no reason for me to give them more time because it won't change the fit. I'm not a believe in burn-in or anything like that either.
These things are veerryy sensitive to seal, and just even lifting them off your ears by a hair makes them sound tinny. I foresee bad results if someone were to try to do some kind of crazy padswap with bigger pads.
Do you believe in break-in for pads? The memory foam does soften up after a few days for what that's worth. Comfort is a very personal issue and I do understand you. Only you can make the right call on that. I wish all headphones came with the Alpha Pads, cuz those things are like sleeping bunnies on your ears.