I’ve always said with bullxs they are only bred for 3 things dfb they aren’t really rabbit or hare dogs,they are to top heavy on the frame and that’s why they always smash there toes as they not made for twisting and turning.It’s like putting a land rover body on a fiesta chassis,throw it into a corner it will topple over and smash its frame because it’s not made for that type of work.That’s just my opinion and seen loads with jumped toes or smashed feet by the time they are 5yrs old.