Hi. I have never had boots on my horses before and am going to be purchasing some smbventec elites. But I am kind of unsure on the sizing directions. I measured the widest point of his front and rear fetlocks ( front 11 and rear 12) so according to their size charts that say I should get the next size up I should get xlarge. Does this sound right? Sorry for silly question but not really wanting to mess up. Thanks.