Your rye breads have a very small amount of rye flour in proportion to white. Can you use more rye flour in a rye bread?
My preference is for a light rye flavor and texture so I use just under 18% rye. If you want higher than 20% rye you need to make a sourdough rye because the acidity of the sourdough is necessary to keep the crumb from getting sticky (due to the pentosans in the rye flour).
To make a bread with about 42% rye, convert the sourdough starter to a sourdough rye starter by feeding it medium rye flour instead of bread flour. You will need a few extra drops of water to achieve a smooth consistency. It will take 9 feedings until you have replaced all the white flour in the starter with rye. (You can do the feedings every 12 hours, leaving the starter at room temperature, or more gradually, refrigerating the starter as per the chart on page 437.)
Then use this starter to make the Sourdough Rye on page 451. When making the bread, feed the starter only medium rye flour but in the dough, omit the 3/4 cups of rye flour, and use a total of 2 cups plus 1 tablespoon (11.5 ounces/325 grams) of bread flour. The dough will rise much more quickly using this high a percentage of rye flour (about 2 hours after the first 2 business letter turns and about 2 1/2 hours after shaping).