Regardless of the leader choice, angle of delivery, or distance in the cast, every tight liner must choose whether to lead, track or guide the flies downstream. So the question here is how do you fish these rigs, not how they are put together.
Good tracking is about letting the flies be more affected by the current than our tippet. Instead of bossing the flies around and leading them downstream, we simply track their progress in the water.
Tracking is the counterpoint to leading. Instead of controlling the speed and position of the nymphs through the drift, we let the flies find their own way . . .