I think he is about 13.3hh
He is a very calm caring pony, he is very responsive to my leg aids and I have never had any problems with him!
Walk - very smooth
Trot - A nice smooth, yet bouncy trot
canter - a nice rocking canter
Gallop - I've never galloped on him, and he's old so I don't think I want to
No idea - I think he is just the regular loving yard/stable/riding pony