Scaling the geometry of the bolts from the photo in reply #3004 of the Go Dog thread, and unlimbering the electronic sliderule, we find that the 40 Nm makeup would produce 5,841 lb force per bolt assuming a friction coefficient of 0.12 in the (loctited) threads and 0.08 at the underhead surface. This makes a longitudinal stress of 51,500 psi in the large diameter shank and 73,540 psi in the smaller shank. The breakout/make-up ratio is 0.289, so since the 40Nm makeup is about 30 lb-ft, the reported 10 lb-ft breakout is to be expected.
For the second make-up method, 10 Nm followed by 75 degrees of rotation, we get a total of 13,523 lb force per bolt and stresses of 119,235 and 170261 psi ASSUMING WE ARE STILL IN THE ELASTIC RANGE OF THE BOLT MATERIAL. Which we probably are not. If not, these numbers would be lower, to be determined by the stress-strain curve of the material. The breakout/make-up ratio remains the same but would depend on the actual final achieved preload.
Take a bolt to the local Instron machine and find out what it does.