Changing bedding every 10 days here. I'm on AC at 76F with a lot of airflow. I always notice things get a little more odor when introducing a new male to a group of females. 4-5 females and 1 male per cement tub.
Have you ever tried aspen pellets? Absorbs much better than just plain aspen. I find pine to be irritating to my colony (and myself).
Video taken today (Wednesday) and the bedding was changed Sunday. Will be changed again next Wednesday.