Well, if practice makes perfect, they oughta be. They've been at it for thirty years solid.
Reagan was the exception, though, at attracting people to the right and/or to the Republican Party. He got literally millions of blue-collar Dems to vote Republican, at least at the top of the ticket. Possibly even more important for the long term was the political talent that rallied to Reagan from the dark side. I'm not sufficiently intimate with all phases of American political history to say so with absolute confidence, but late 70's and early 80's may well have seen the most dramatic transfer of political/policy talent between parties that has ever occured. And how quickly it happened! Jean Kirkpatrick didn't change her registration until 1985, and she was among the foot draggers in that regard.
Of course this (like the economic recovery) is another reality that will surely be unknown to viewers of The Reagans.