We did it this last year from one we could never seem to get stuck ai. We actually used 3, one on each side and one in the middle. She bred first time.
That is my standard procedure. I split every straw in every cow, you just never know where, if any, scar tissue is there -- some times one side or the other may be partially blocked and will divert the semen. Horn breeding makes sure each side has a chance to fertilize if the egg is there. It works VERY well.