There is this old skool thing called "timed approaches" that is giving me the willies with respect to your post. Are you talking about a non-precision approach where you have to time to define the MAP? If so, that's no big deal. You always do the 5 T's passing the FAF. Time, Turn, Twist, Throttle, Talk. The first one, Time, is where you hit the clock and that gives you a time to the MAP. Only way around that is if you have DME or GPS to define the MAP.