I'm a beginner private pilot flying VFR in Europe. I think I've heard that in the US it's not so common to fly at flight levels on small aircraft, but in Europe the transition altitude can be quite low enough for small planes, and there are definitely places you can fly VFR at FLs.
I want to go out and practice this sometimes (the rule is VFR flights fly at FL+500ft). But there is a basic question I haven't clearly discussed anywhere, which is if I change track such that I have to ascend or descend to a different FL according to the even/odd rule, what is the procedure? Change track first and then descend (for example)? Or descend first? Or do both more-or-less simultaneously? Though at 500ft/m there will still be about 2 minutes of transition either way. How can this be ensured safely?