As others have said, on the OEM Bridgestones my fronts feather similarly, though typically not that pronounced.

On my bike, the noise/hum in turns comes from the rear. It starts about 1,000 miles into a new rear, and gets louder as it wears. If you look at the rear tire, the "blocks" end up being higher on one side of the sipe than the other (I forget if it's higher on the leading or trailing edge of the block). It almost sounds a bit like a knobby tire when leaned over, but is quiet in the straights. As quick as I replace the rear, it's dead silent in turns until the tire gets 1k on it.