Hi i have a one year one month hermann tortoise and most of his carapace is hard but i noticed the bottom of it and the plastron still has some very slight give almost none though except for where the yolc sac where and at the little thin area at the bottom of the carapace where you can kind of push it down. Those are the only places you can se noticeble give the other places you can barely see it if even at all. Is this normal for the torts age and when will the rest of his shell completely harden. It's not soft in anyway it just has some give in some places.