I'm a bit ol' fashioned. All my areas that I frequent have been paced off during the off season. When I settle down after year round scouting to pace off the real sweet spots I again pace them off in 10 yds increments/ 360 degrees/out to 30 yds. I mark yardage with an X on 10/20/30 trees. In open areas I drive tomato stakes and mark likewise. It's great exercise, more time afield to learn and real inexpensive!!