I will definitely try bumping the humidity. It has actually been a hassle for me to keep the humidity that low. I did notice this last shed seemed a little drier than I am used to. It was still all one piece but kind of flaky when I picked it up.
I was told he was regularly eating mouse hoppers as long as it was dark and quiet. So far he just ignores the mice or burrows all of the way down to the bottom of the substrate until it is taken out. I much prefer f/t so I may just try f/t from now on. I have to do the same with my Hog it has to be warm and "alive" for her to eat. I will also try feeding him in his enclosure as well.
I was beyond freaked out when he went over 6 months but he didn't lose much weight so I just waited him out.
I've read so many conflicting things about the heat that I wasn't sure which one to follow.