I like this word tweak, it was because of quote tweaking that it took Davey and Colin ages to get the right settings on the control systems. The prop setting being only correctly achieved whilst in dry dock as you had to align all marks. When I rejoined her as chief I carried on along with Colin and eventually she came good. We normally ran on one Engine due to a directive from Bath, only two Engines if situations required it, one Engine 4 - 6 Tons of fuel over 24 hr period, two engines 8 -10 tons, quite a bit of extra fuel for extra three knots. I was on the Iceland trip where the hull got cracked in steering flat, had to shore off area, put in drain away and cement block it up, plugging drain on completion, lasted till we got home. The weather conditions on that trip were bad to say the least and we took a lot of damage, loosing the cat walk between the horns being another part of damage, also Crane electrics being goosed due to water intake. The weather on that trip was so bad we were forced to use both engines. But one thing is for sure the Salmoor was the only one of the three built to the original specifications. I also carried out a full vibration analysis check on Salmaster when I was with the vibration team in Rosyth, the results being duplicated and sent to Bath, but they must have been like the Newton and disapeared at sea? Most of the problems with a lot of the machinery was due to mounting on the hull, some machinery being worse than others. Also during next refit after that time, extra ballast and stiffners were added to tanks to eleviate some of the vibrations, it improved situation a lot. The ballast that was added should have been there in the first place. By the way as I tried to point out to a certain boss on the Clyde, it made no difference if you ran two engines whilst manouvering as only one took the load. The port engine I think, so one engine was enough for most tasks and of course entering and leaving port, and if you don't believe it I suggested he read the manuals. I don't suppose that did my career any favours, but hey I'm still here, well I think I am, I was when I got up this morning.