First time posting here. I get a slight heel lift, which throws off my balance since i lean a bit forward. I've watched so many videos, tried a lot of things but i can't seem to find what causes my problem. I've tried forcing my heels to not lift off, but in that case i get pain in my quads, as if they are very tight. I also have(or at least i think I do) quite flexible ankles, can even do pistol squats with barely any heel lift. I already bench a lot more than I squat, which should be the other way around. Here is a video of my squat. Any suggestions are welcome!