I had read on previous posts that you do a final check for 110nm, i thought it may be a good idea to torque to that in the 4th stage rather than do the second 90 degree rotation to avoid over stretching the bolts.
But now, i beginning to think that bolts are supposed to be tightened up past the 110nm mark when using the rotation method, and the final check ensures the bolts have not been stretched beyond their yield zone.

Cheers.