I jump back and forth between three cameras fairly often: the D3300, the D550, and the D7200. The best I can tell you is that the more frequently you do it, the easier it gets. It's also fun to do because at times, it reminds you about the strengths that each of the cameras bring to a situation and why you bought that particular model in the first place. I just pulled some photos tha I'd shot during the past couple of months out of the D5500, for example, and was delighted with the results ... a reminder of how good that model really is. Not sure if that helps or not, but it's what comes to mind.
Nice to have you on the site, by the way.
