I currently own a High Country Split One X1 and put a new rest on it this past year and all I did was nock an arrow while having it sit on my rest and hold the bow at arms length and split the arrow with the string. This seemed to work very well for me because when I went to tune my bow It was shooting bullet holes from 6ft to 20 yards without an adjustment. Save your money on those tools eyeball it, if its off you' ll know its off very quickly when you go to paper tune your bow.