I have struggled for years with creeping (losing back tension) as I pulled through my shot. This winter I've been working on form. I've discovered that if I draw the bow string until it touches my chest, along the edge of my pectoral muscle, and hold the string there, I don't creep at all. In fact, it helps me pull through my shot. I love when I have an epiphany moment like this!
Swampcrawler, LOL. I didn't know I was creeping either. I felt like I was solid in my form until I posted a video and an archery coach picked up on it by looking at the very tip of my bow string elbow. He could see I wasn't pulling the bow back the same every time and was creeping ever so slightly.