Stone_cold
Well I think we have made some progress. You should distinguish between what I think and what I state from the manufacturer. The point is the choice of accepting or rejecting always remains with you. The topic at hand is not what I think but stated by airbus in airbus supply Flight training standardisation bulletin Dec2013. I am unable to attach it so I copy pasted relevant portion. It won't help even if I could attaché because you are still bound by your company procedures.You stated you also have many things which you can post please go ahead I would welcome that. Idea is to enhance our knowledge and awareness about why and how we do things. I raised a few points in my post I would like to have your views on that. I would enjoy a professional discussion