Personally, I think every guide for elk should have a photo of an elk broadside, maybe quartering away, and have it handy for times like this. I did it with my daughters when they were young telling them exactly where to aim. It may sound "Amateurish" but when you have new hunters, or hunters without a lot of experience, showing a picture, with you referencing right where they need to shoot = Better outcomes. Telling a guy to "Aim behind the shoulder" or "Shoot 1/3 of the way up" doesn't help much. I've seen it, animal quartered slight away, they aim behind the shoulder and then what? Bad hit, calibers fault.