I think it appropriate that I say a big thank you to everyone who has given their thoughts and ideas on this topic. For a complete ignoramus on the subject it has been helpful, to say the least. There seemed so many pros and cons for and against either tuning that in the end, for me, it boiled down to my preference for the sound and, perhaps, a bit more versatility that comes with a c/g.
So I am now the proud owner of a Lachenal c/g and very happy I am too!
Thank you again,
Ollie