Double Tap instantiating a Line instance


It appears that analysis through the Instruments allocations tool reveals that double tapping the view will instantiate a Line instance, adding 1 to the objects allocated count, and subsequently deallocating the previously created lines. I imagine that preventing an object being allocated can be manipulated through timing and tap count, as it seems that on first tap a line is created when there could be a delay to see if another tap follows. Am I on the right track?