After a lot of advise from numerous people on here but @mrscalex who took a lot of time to explain what to try I eventually gave up and the 2.0 went back to the seller.
Want to say thanks for everyone’s help on that one
So a 2.8 came up for sale and I thought I will go have a look ...anyway I bought it and so far it’s much better than the 2.0 and I would go as far to say better than my first 2.8
Thanks again
Tony