YSD,

The only down side I can think of is nearly invisible corrosion which may, may, adversely affect the shaving edge and which can probably be polished away with an easy strop. Or it may matter not. Then again, it can't hurt to strop it again after the razor's been parked for a while.

So, we gotta six and we gotta half a dozen. My vote is on six. Then again, I voted on the group buy soap at least a half dozen times and there nobody's winning.