i just made a 55" osage bow, and in my opinion, you just should not draw to 28" on a bow that short. you have to use some common sense, a bow that short is under a lot of stress. when it's overdrawn wood fibers start to break and your bow will start to take on set. why push it? just modify your anchor point when you shoot a bow that short. you don't have to plant your fingers at the corner of your mouth to be accurate. for example, on my short bows i bring the bottom of my palm to the corner of my mouth. with my fingers stretched out i buy myself a good 5-6 inches. instead of drawing 27" i'm only drawing 22". the bow is fine and i'm not worried. you can also eliminate a few inches of draw by bending your elbow on your left arm.