I have acquired a stock of off face early 20th century clunkers for experiment.
I want to remove and rotate some of their hinge pins to see what improvements can be made in lieu of tigging the hooks, filletting them, or draw reaming.

Any suggestions or rules of thumb for removing them?
One thing I want to try is 180 degree planar rotation, and 180 degree axial rotation.

What's the best technique for removal?
I am working on a procedure for the use of plastigauge that I'll post pack when complete.

Out there doing it best I can.