Good question. I don"t fly professionally, but I'm taking up a figurehead role that is new to me and doing a similar thing. My suggestion is that you make a list of 6 - 10 questions. Not technical ones about adding rudder, but the ones behind those questions about showing leadership to a less experienced no.2. Then I'd find 3 or 4 of the absolute best most admirable captains you can and ask them. The questions need to be well thought out so that a) you don't waste their time and b) so they immediately see that you're smarter than the average bear. I think that you'll be surprised by the positive reception you get.
The other advice that comes up time and time again from the good authors is to do a personal critique of each flight and identify the bits you are uncomfortable about and without the pressure of flying, think about alternate options.