Man, my gut only talks to me about pizza toppings. Seriously though, good call. I once rushed a job because we were behind schedule, ignored that little voice, and the whole thing was off by a half inch. Cost me a whole afternoon of rework and a lot of grumbling from the client. Now I force myself to check twice even when I'm in a hurry. That ten minutes you spent shimming probably saved you a full day's headache later.