i start my top pin at 20 and shoot 10 yard increments out to 60. but you can get them in a variety of pin numbers. i have 5..

i started my top pin at 15 last year and found that 25 was too close for comfort and shot true to dang near 25yds. this year im shooting a heavier arrow at the same speed or slightly faster than last years and my 20yd pin gets me to about 25 still.