I just noticed that the data sheet in the latest 1 litre E6 Bellini 6/7 bath kit (purchased earlier this year) says "processes on average 9 films of 36 exp", whereas in the ones I purchased for several years before, the data sheet gave a capacity of 12 films. I'm assuming that this is not a change of the chemistry, but of the data sheet.
I'm not familiar with other 6/7 bath kits ... the original E6 process ... but perhaps someone might let us know what their recommended capacity is?
I've never used any of the kits to their full stated capacity anyway. Typically I process about 2/3 of recommended capacity. For example, this past few days I processed 6 films in the 1 litre Bellini kit (and am very pleased with the results!).