On Fri, 2007-12-14 at 01:07 +0200, Donn wrote: > Okay, bedtime is long overdue, herewith my latest diagram. I hope it has > addressed much of the input I have received. Thanks for all the help. I think that it would make sense to show a 'mask' which is different from the 'clip' to show how the two are composed. Mathieu