If you extend the infinity sideways (easy with touch, hard with mouse) it seems to depend on how many lobes there are. 3, 5, or 7 is stable, 4, 6, or 8 is very

If you extend the infinity sideways (easy with touch, hard with mouse) it seems to depend on how many lobes there are. 3, 5, or 7 is stable, 4, 6, or 8 is very unstable.