You are dead right about 011 . It has had some engine work done to it and it worked ok on the 6B13 for a while.There is talk of exam work on the 59's being done at Margam wagon shop.Wonder if there is an improvement in them after the last trial.
Canton should never have been shut as it was very experienced at 60 work. The class 66's are doing ok but need a bit more tlc than they are getting with very few maintenance facilities in the UK.