Reply to Bobsmith
You do not name schools, and I remain unconvinced.
As a freelance timetabler, I have been inundated over the last two years by requests for help from schools who are attempting to timetable with EDVAL.
Usually, EDVAL has been forced onto timetablers by Trust managers who are only concerned with the price tag rather than the quality of the product, and who are not listening to those in their schools with the expertise.