6:30 is the suggested time for the first developer, but after reading about E6 developing at the Jobo-website I understand that a 16% extra development in the first developer is required for all Fuji films (except Astia). I use only Fuji films so I am still a bit confused. I have tried 7:30 in 1st dev on a few rolls of Provia 100F and the results look OK to me. Have anyone any opinions on this?