Hi Alan, You have made a very good point here!How we work is that I specialize in diagnostics and Charlie does the mechanical work.If one or the other of us has a quiet spell then we help with the other's tasks!This has worked really well for many years,but we are family.I don't envy anyone having to rely on training someone to do diagnostics alongside of the mechanical,and then having to wonder if they will then remain loyal or go off and work elsewhere!We try to offer our customers 'the complete service' under one roof,but we have been lucky with our choices and I'm not going to say that this will work for every garage. All the best, Gunner.