Hey, just a little speed test comparaison between lists add / insert at 1 / insert at random and between replacing items - Press space to run the test (turbo mode actually don't break the test...) - Press up arrow to change the number of items for the test (in average, adding at the end is wayyy better than adding randomly and adding at the start is the worst... you can also have a preset list and then just access it, it's quite fast...)