AndynJ - if your bloodline is losing it's colouring, Wouldn't you be better going back to a cross with one of the original breeds, ie Scots Dumpy (or Marans) for the barring, or Leghorn for the base colouring. And, of course, Araucana for the blue egg.
Mind you - it's probably better to do as you've said and ditch your strain and get another that you like.
Incidentally, I don't know where you are but I've got a young legbar cockerel you can have for nothing.