Sourdough - Keys to my eventual success in Sourdough, and making a soft sourdough loaf with a soft chew:
1.) Feeding starter at same time everyday and finding the right storage spot (a spot with a consistent environment of temp, humidity, etc, throughout the day/night). Turned out a kitchen drawer was the best spot in my house.
2.) Feeding my starter at least twice, with an hour or so between feedings, before making bread.
3.) Using the right amount and right types of fat. Can't find the article now, but there was a study done, I think in the 1940s, which showed an equal amount of solid fat and liquid fat up to total of 3% Baker's Percentage, provided the most rise.
4.) Preferment. Half the flour, all the water and all the starter of recipe. Mix well, cover. Allow to sit it the same location of the starter (in my case the drawer) until it at least doubles. This can take anywhere from 2-4 hours. Mix in remaining flour and other ingredients.
5.) I stopped using other people's recipes. LOL
ETA: These loaves are 100% sourdough - no commercial/store-bought yeast. I made a store-bought yeasted bread for the first time ever the other week. I used the same method I use for Sourdough, and the bread was so soft as to not be desirable. Too funny!