Charles Owen H2000 sizing.

[fayeg1]

I fancy the Charles Owen H2000 to update my show wardrobe but can't find a saddlery anywhere near me that stocks them. Obviously I'd want to get one fitted rather than just buy online willy-nilly.
However, I do have a Charles Owen Young Rider's hat which is similar to the shape etc of the H2000 in 7 1/4 and fits perfectly.
Are Charles Owen hats all the same size? So is it likely if 7 1/4 in the Young Rider's one will be the same as the 7 1/4 in the H2000?
Thanks

 

[sbloom]

I think they are similar but the H2000 is slightly more oval and also taller, I looked a proper spud in it and ended up getting the SJXP which is a very similar oval shape and still a deep fit over the head but not as tall.