OK, so I jumped the gun and bought a new Diamond V2000 from Waters and Stanton to replace on my mast as my one had high SWR on 2m only. Turns out it was a lightning arrestor that packed up and mast is back up with old antenna.
My loss your gain, I have a V2000 arrived yesterday from WS at a cost of £100 pp which I will let go at £80. Its still in the cardboard packaging that it arrived in.
Its a proper diamond and not a copy….you get what you pay for.