question about KA Simple,Rustic loaf
I would like to make the Simple,Rustic loaf from the KA website. It gives amounts for a starter. I have a sourdough starter that I feed with the 1:2:2 method. I need to know how much of my starter to use instead of starting from scratch with theirs. Their recipe calls for: 1 1/2c(12 oz) cool water, 1 1/2c (6 1/4 oz)ap flour and 1/2c (2 oz) pumpernickel flour. I see lots of different conversion things here but I'm not good with them but willing to learn. Also, don't you think I can substitute rye flour for pumpernickel? Thanks for your help.