I have used the step-through method for well over 30 years (as I was taught in school and in Fred Bear's book), and never had an issue. As long as you go slow and use your torso, keeping the upper limb high up, against ones body to bend the bow, keeping both limbs in line, there shouldn't be a problem. Keep your strong hand FLAT against the upper limb as you twist, stringing with your weak hand. I have NEVER had a problem, and I un-string my bows (both new and vintage) after I'm done hunting or shooting. I don't want to chance the string breaking or the bow being picked up and dry fired by a novice if I'm not around. That being said, there have been LOTS of reports of twisted bow limbs from the step-through method (impropery utilized), over the years. I would tell anyone new, "get a bow stringer". I'm just too set in my ways to change at this point.