Hi everyone! I am hopeful that some of you veterans can help me as I am about to embark on a Kallitype adventure! Naturally, I have questions: I read in the "Coming Into Focus" book that brushes should not have any metal on them as the metal will react badly with some chemicals. Is this true? If so, then where do I get suitable brushes?? I also read that up to nine trays would be needed - I think instead of following the book's procedure, I will use the one so kindly written by Sandy King. But as I want to try other processes as well, I'm wondering if any of them share some of the same chemicals? Or should I just buy a Kallitype kit? One last question - I read in the Sandy King's article that the negative (original or digital) should have a density range of about log 1.8. What does that mean? Is there any way someone can post visual examples of this? As I'm just beginning, I don't want to buy any fancy measuring devices; specialty stuff will come later once I've had more time to experiment. Of course, if there are any tips you might want to share, I will certainly welcome them. Thanks!!