Hi! I'm a sourdough newbie. I ordered Carl's Sourdough starter online and got my starter going 3 days ago. I started with 1/4 cup each of water and flour (plus 2 tablespoons), plus the dried starter. I feed twice a day and keep my starter in a 12-cup glass container. The starter's doing really well. My only question is this...I'm not sure how much to feed my starter. It's grown quite a bit...I believe I have about 4 cups now. I haven't discarded much starter because, well, won't I need at least 4 cups of starter at all times for recipes? So, I guess I don't know how much of the starter to throw away and how much flour and water to continue adding. If I throw away a cup of starter, does that mean I need to add 1/2 cup each of water and flour?
Also, how long should I let my starter sit out (days? Weeks?) before refrigerating it, for the best taste?