There was a post about this a couple of years ago I think but I do not remember the title. If I remember the post and the few responses correctly, there is no premium for either back although the lighter one is very slightly less common. I also believe that any responses indicated that having the backs all the same is a personal preference but not worth an extra premium.
I hope I summarized the older post correctly but I might have remembered it wrong. I hope others chime in also.
Alan
|