We are about to embark on two of these, within our centre. Practical Data Analysis for Core Science and the first Practical Investigation with our Physics separate scientists. Despite having a pretty experienced team the whole process is somewhat daunting. I would be interested to know how other centres are finding this, or whether it is generally being left for later in the course. OCR havent been particularly helpful in providing advice we have asked for, but I suppose we have only given them a few weeks to respond.