Why is there an extra set of eyelets on your running shoes? Look down now and see the last set of eyelets, the holes that are never laced because every single pair of running shoes you have ever owned came that way, fresh from the box. You took out the tissue paper, the cardboard and the foot stretchers, but you never, ever bothered to lace that last set of eyelets. There may have even been two sets of ending eyelets, not that you would know because you failed to notice.
Whether you use these eyelets or not, they have a unique purpose of prompting your heel to align in its proper place. So if you want your heel to stay and not lift from the sole during its commanding heel toe strike try lacing your entire running shoe.
And while you’re at it another improvement for proper fit and a way to extend wear is to lace your shoe with each changing season. You may already be in the process of getting new running shoes every three months, but if not try a fresh lacing. Think of rotating tires and the difference in weight and wear from the front and rear axles. In a similar way, differential stress placed on laces is a misalignment. New laces are not necessary, just a fresh realignment for ties that bind for a clean strike.