OK i was just thinking as far as we know faith never had prophecy dreams and we know from Fray that the powers of prophecy dreaming and seeing the lives of past slayers are completely seperate from the physical powers of the slayer. So I think faith and kendra never recieved these powers of the slayer, my reason for this is as far as we know neither had prophecy dreams and also shouldn't faith and kendra at least sub conciousley know everything about buffy because they get the memories of past slayers, whereas they didnt even seem to really know her that well, especially kendra. Although the weirdo, psycho slayer in angel did have the power of viewing the past lifes of the slayer but was that because she was a scythe activated slayer, did that make her a full blown slayer and faith/kendra only 1/3 maybe 2/3s of a slayer as it seems the slayers gifts are threefold. Or did they simply not get buffys memories because she didnt really die or maybe you dont get the memories of the slayer before you. Are any of these questions answered in the programor by joss?