So I noticed that when I run uphills its far easier bf/min than with shoes. Then I realized I'm not actually using a midfoot strike on bigger hills (like around a 6% ish grade is when I notice it) I go into more of a forefoot strike. This this a problem? I mean I can force a more midfoot strike but it seems to take alot more effort and isn't as...hmm lets call it springy. Am I better off forcing a midfoot strike since eventually it'll feel natural or just trusting my feet to do what is best for them?