Hi everyone, i'm thinking of buying a 16.2 TB and i ony weigh about 7st so i know id be fine BUT my mum weighs a lot more than me and she'd be riding twice a week for about an hour (?). how much would you say a 16.2 TB should be carrying? i've gotten different replies. some people saying that TBs have thinner bones and cannot carry as much weight, some saying that she'd be fine bc he's 16.2 and has a bit of muscle to him. any thoughts?