Sourdough starters are personal things. Many starters have long and distinguished careers. There is also much myth and legend about sourdough. We use a starter that grew from a sample graciously given to us by the The Bake Shop in Girdwood, Alaska. Their starter has a history that goes back some 80 years.
When in Girdwood, Alaska, stop in and visit the Bake Shop. Try the bottomless cup of soup and sourdough bun and butter. You'll be glad you did.
The round shape of these loaves make a perfect bread for patty melt sandwiches. It is also great for grilled/paninni-style sandwiches and makes a nice alternative to the hamburger-style bun. The special baking pan, a #3 juice can, is probably already in your cupboard.