My Ten Point shoots 316 fps. I set the dial on the scope to the speed it shoots (316) and the elevation for the first dot is automatically set for 20 yards. The 2nd, is for 30, the 3rd is for 40 and the 4th for 50 yards. I adjust the dial for left and right as needed and it's ready to go. There are three visual settings - black dots no light, red light, and green light. I purchased lighter bolts and shot 320fps last season. I dialed it to 320 and all the dots were good to go.