100% Whole Wheat Sandwich Bread

I have joined the Healthy Bread in 5 group, and this is my first post related to that! The group actually doesn't start baking from the book until January, but I have already made the basic boule recipe once and this recipe twice. I got myself a 13" Pullman pan (from King Arthur's catalog), because I wanted to make "sandwich" bread. My three year old wouldn't really eat sandwich bread if it wasn't shaped like a sandwich bread from those plastic bags! I followed the directions for the batch from the book, then after the first rise, took about 3/4 of the dough and placed it into the greased Pullman pan. I allowed it to rise again, then baked it for 45 minutes. As a note, when I did this two weeks ago, I was using cold dough from a 24 rest in the fridge - even with a 90 minute warm up time in my kitchen, it still took over an hour for the dough to cook to 190 degrees - I really didn't want a gummy loaf! I will definitely try this again with a cold dough, and maybe allow it more time to "warm up" - this is such a winner of a recipe that I haven't branched out to other recipes from the book!