[bionicmerlin]

Thanks for the link FD .i missed that before. I got a few couple more larger 14oos to do so I might have to revert back to these this link for more tips.
I do have a slight hight difference between 625 and 405 not much to worry about but I will do a couple more checks .
Simon HT
Yes mine has not had that mod done. I was checking last night .i do have some new old stock 2.2 M pots that are exactly the same as the original. On testing they all read about 1.8 M having clearly got 2.2 stamps on them. I guess they might work . I will give them a try Andy