Changing from yeast to starter

Here is a method from one in Sourdough Jack's Cookery. Take 2/3 of the flour from your recipe and add it to all of the water, plus 1 cup of active starter. Stir, cover, and set on the counter overnight. Then add the rest of the ingredients and proceed as usual.  I used this to convert a sandwich bread recipe with great success.  Hope it helps.

Paul