I have forward tilting hips. Cressey. Brett and others frequently say people with forward tilting hips need to work on activating flutes more. My lower back is tighter than it should be. I strach hip flexors , flutes, lower back and ham strings frequently.
I sometimes wonder how much is enough. Louie says train the abs. There comes a point when the abs are strong enough, similarly there comes a point when your flutes activate enough. I just dont know what that point is.
Yes, I get sore in the glutes some times from squatting. Good mornings do it too. Glute bridges tool.