Yes, there's a difference between recognizing when the conditions are right for a Lucena position and actually creating those conditions. Some focus on how to actually create favourable transitions to the endgame as opposed to simply recognizing them when they're already there would be good.
That said I trade rooks for minor peices to simplify into won King-and-pawn endgames quite frequently.
How to deal with "driving range syndrome" and take one's game "to the course".
Just like in golf , where one can hit shot after beautiful shot at the range only to
implode over 18 holes, in chess one can study strategy and tactics and position for hundreds
of hours only to get swamped in a game and wonder what went wrong.
It seems I have never played the Philidor, Lucena, or Saveedra in a real game.
I have rarely sacrificed a rook for a knight as occurs in every third Tactics Trainer
problem. I have never traded my queen for the h6 pawn and then swooped in
with my rook and knight. And I have never moved my b-pawn one move like
Karpov and suddenly gone from a losing position to dominance.
I say this with humor but I really do have a problem of finding "when" to
play the right move, yet I always seem to notice good moves when I am
observing highly rated games.
A course on "timing" in chess, which is so crucial, would be greatly
appreciated.