If you have your 10 yrd pin sighted in, Could you sight in your 20 and 30 yard pins by measuring of your 10 yrd pin. So what I am trying to say, is there a certain measurement off your 10yrd arrow that your 20 and 30 yrd arrows would be. I have limited for space at home when practicing. 12 yrds is what I have in my basement. I shoot everyday just for form.