Just spoke to my friend at the cemetery regarding the majors cremation theory, he reckons very difficult but not impossible, apparently it is all computerised but you need to know what your doing, he said each time it is fired up and put into operation there is a record of it, couldn't be done first thing as would still be hot when operatives turn up for work and they fire it up daily for the days events, I asked about a weekend, especially a Sunday, he said that although the crematorium is shut there are still people working at the cemetery, he said the only way round it is when it's fired up after routine maintenance or repair, but would need one of the usual operatives to be on site, he said it usually takes about 2 hours to render a body to Ashes, although can take longer apparently depending on size of coffin, but it's usually about 2.5 hours maximum