Sandro Hit will pretty reliably refine on a mare - they are frequently taller with nice leg proportion. They can be narrow through the body which works well on some of the bigger, heavier, old fashioned mares. He was indeed jumper bred but was disasterous at it himself, though I have heard of S line horses ending up as hunters, namely by Sir Donnerhall.
I would perhaps look for other options if someone wanted something super scopey and of FEI showjumping capability, but he may be a decent option for someone looking to breed for a hunter with the right mare (and depending on goals). They have a varied reputation for brain and rideablity. The negatives are generally that they aren’t necessarily amateur friendly and can have poor work ethic. Some of the Sandro Hit sons are known for passing on “electric” temperaments (San Amour).