Thanks Mary Kay, that's just what I was looking for! I will give it a try over the weekend when I can watch the kiln like a hawk and post the results!
Apart from working with the published schedules, are there any 'rules' on how to work these schedules out, or is it just testing and experience? For example, what would the difference in a fast ramp up and a slow ramp up do to different thicknesses/layers/fuse or slump? Are there kilns that are known to be slightly hotter/colder (I have a Skutt Firebox 14)? I have been doing a couple of experiments which haven't turned out quite as I was expecting and I don't have the knowledge or experience to know what I did wrong!
Sorry if I'm asking basic questions - I moved into a house with enough space for a proper workshop recently and I thought it was about time I started using all the glass I have squirrelled away over the years, including some from a Portland trip 5 years ago!