Good morning, I am the proud owner of a 4 year old female spur thigh. Had her about a year and a half now. I planned on hybernating her this year but have a question about the jackson scale. I weighed her today and she comes up as light for hybernation so was wondering when this scale should be used? Is right before the hybernation process too late and thats why she comes up small?? She is currently on a tortoise table with lamps. Any help would be very much appreciated.