Sorry Brian, I've only just seen this post. Yes you are correct, there was a figure of 8 RFC when I bought the property. That is one of the issues I am planning to correct whilst re-wiring.These will be two branches of the same radial, not two separate radials, and is absolutely fine, provided that you totally disconnect the faulty wire.
Edit: Just seen Lucien's reply, and read the OP more carefully, and it reads that you originally had a 'figure of 8' RFC arrangement, which is not permitted.