There is a wide saddle in the Wintec (I don't think in the Bates models yet though) that has CAIR and a WIDE TREE, meaning wide channel between the panels to allow spine clearance. For example, my baroque Oldenburg who is 17.1 hh needs a medium tree, which is the standard, and my 14.3 hh Spanish Arab needs an X-Wide Tree. The gullet (in the front withers area) fit, but the channel between the panels however was NOT wide enough to clear either one's spines. Hence I sent the regular Wintecs back and got a Wintec Wide All purpose, that only fits my Arab boy and that's the one with CAIR and a wide channel between the panels, but sadly only fits the wide wide horses, not my Oldenburg. With the Wide I can only use the smallest gullet that comes with the saddle on my Arab, because they are WIDE! LOL. You have to be careful with the Bates as with any other saddle you use because even if the wither/gullet area fits your horse and the saddle does have CAIR system, you HAVE to make sure the channel between the panels follows through wide enough to clear your horse's spine, or else the CAIR doesn't do squat if it's sitting on the spine. Therefore, you can't just get one Wintec or Bates with CAIR and think it fits any horse. You can't use it on all your horses that have different body types. Hope this helped.
John 14:6 - Jesus said unto him, "I am the way, the truth, and the life: no man cometh unto the Father, but by Me."