Good grief... three pages of gum flapping about setting an altitude in the MCP. Why do pilots have a propensity to make mountains out of mole hills?
I'm sure that my airline has a by the book procedure for PF or PNF with AP on or AP off. I don't know and I don't care. If it's convenient for me to set the altitude, then I set it. If it's convenient for the F/O to set the altitude, then he/she can set it. I don't care as long as it gets set - then we both do the company's required little finger point. Big picture, forest from trees, shinny side up- dirty side down, fly A to B, go home, collect check.