Did you tell him what you were doing WHILE you were doing it? Did you inform ATC? And have you discussed it with your peers later?
Personally, I feel quite happy if my copilot adjusts his/her/our flightpath to maintain separation as long as I'm told and kept in the loop. As long as you err on the side of caution, I fail to see how they could throw the book at you.
good luck
MMM, did not mean to come across in a patronising manner..SORRY
But I agreewith 411A, better be proactive than reactive. As long as you maintain your CRM as well..
