Dear Graeme, > The next release will by default add some extrapolation patches up to the > device min/max values along the neutral axis when -u is used with input > profiles, > to overcome the sometimes unexpected default extrapolation behaviour. You can > always override this with extra patches though, if you don't like what it > does. Most valuable, thank you. If you will be adding profiling from a bracketed target I will be happy to offer measurements. However calculations work pretty well too until we are getting onto non-linear portions of the response of film or flare zones of sensors. -- Iliah Borg ib@xxxxxxxxxxx