Location: Aurora, OR by way of Maui..... Liberalism is the philosophy of the terminally stupid
My C6 is a DD and yes, GET A CLEAR BRA installed (I highly recommend Clear Bra of Oregon in Hillsboro). Not just for winter but trust me, you'll want it year 'round. It's not cheap to have it done CORRECTLY but it is worth every penny.
And if you have a widebody, get the rear quarters done as well.