so those are all if you like the background, the things that do change but the fundamentals that stay the same are the design and the delivery and although we'll look a little bit although we've er i have to say with the numbers we've got here today it will only be a little bit about things like question and visual aids and because of the time factor if you think about it if we've twelve people to make four presentations or we've eight people to make four presentations time is a little bit different and with with twelve we don't perhaps have the luxury of time that we would with eight people which is what the course was originally designed for.