Anyone ever break a SBJ spindle at the upper BJ taper?

I'm considering going with the Bergman upper A arm with the ½" taller BJ that has the larger shank as I don't think Hotchkis is doing well enough to worry about my upper A arms.
I do some off road stuff also and it's common to use a tapered ream to go from a half ton tie rod ends to one ton, at the steering arm and at the steering knuckles, it's also common in the circle track community and those forms of motorsports are extremely hard on parts and I don't see them breaking in those areas often if ever without heavy collision.