Bismark, Gold Standard, Bush's Unbelievable?

Getting ready to A.I. breed a group of heifers.  I have three easy calving Angus bulls that I will be using.
Bismark, Gold Standard and Bush's Unbelievable.
Which one of the three is the largest framed (tallest height)?
Does anyone know their mature frame scores?
Thank you,

I will guess that Gold Standard will be by far the shortest one.  Have only used Bush's Unbelievable of the three and so far I like the size of the calves and the fact that they have the growth to yearling size and then seem to shut down on frame.  He is supposed to be a 6 frame bull, so nice sized and not a pud.  Just sold a 2-year old Unbelievable bull that we raised and used as a yearling and all his calves out of Angus and clubby bred heifers calved unassisted.

Bismarck is a 6 frame

Just curious as to how these bulls worked for you SEA.

Bismarck is a 6 frame, but his females do have lots of good height on them in our herds still.