Jim,
Its my trade that was the vital key, although the unit have me lined up for a course on braking systems, someone realized ships don't have brakes !!! apart from that can transfer my skills across as they applied and got me exemptions (being a time served Fitter & Turner got me some brownie points also), but there still may be a few stumbling blocks regarding my colour vision.... colour vision grades C1 to C4, I,m a C4, a VM needs to be C3, Recovery Mechanic C4, Armourer C4.
As one of my mates said "there has been more twists and turns in my application than a Agatha Christie novel"