yes i totally agree and 9st is light my sister is 9 half st and our filly carries her no problem but we only took her half mile max and she had had enough by the end of it but once fully mature and muscled up im sure 9 to 10st she would carry but at her age i think you have to be careful with weight as she still developing i wish i weighed 9 stone i think ponies are great fun when i was 16 i had a 17h id and a 13 2 cob prefered him hands down such good fun n soooo cheeky