I hate to be the bearer of bad news but, if she's truly 3 years old and only 13.2 hh, I sure wouldn't be betting any of my money on her making 15 hh. Have you done a string test on her?Hi I've bought a filly cob not stocky on the basis that she makes 15h I'm now panicking she 3 and 13 2 tell me did yours make that height which was roughly the same thnx