Sorry didn't want to go indepth, as it was just an idle thought one night..
When you have a series that's well, for example
Women of the Otherworld [4]
The Women of the Otherworld [4]
Women of the Other World [4]
A Women of the Otherworld [4]
Otherworld Women [4]
You can usually spot them by just using the tag browser and expanding Series, but when there far apart, like in the case of ones starting with a different letter, it gets harder.
Your duplicate checker is great for authors in that regard in that it matches similar / fuzzy etc. I was thinking about that specifically on Series field - that is all, not a request just a thought.
Thanks for the reply