It works ok for the experienced staff but for someone who is new to workshops it requires more content and further explanation of the hazards. (More examples of what can go wrong!) Whilst I agree much of it is common sense, if you don't know, you don't know. A training course cannot be any more complacent than the operative who needs it. Therefore I would suggest at least 2 if not 3 levels of course. Beginner, intermediate and experienced. In a worse case scenario, intermediate and experienced could be combined. It would also be useful to have a printable version of the different warning/hazard signs as a point of reference. (It would be easy for a beginner to forget or confuse them).