I'm making an attempt to get back into squatting one day. Flexibility is a major issue for me! As for as hip flexibility, I like to get down into a lunge position with the forward foot bent at 90 degrees and the rear foot stretched as for back as possible. from that position, if my right leg is forward, I try to touch my right elbow to the floor next to the instep on my right foot. Then, I switch. Does that make sense?