30 yards is not 30 yards! I use the range finder and checkout trees at " my level" and not directly at the ground. I hunt fairly high (17' to 22' ) and that makes a bigger differance. If you only hunt 10' off the ground it doesn' t make much differance but some.

The real answer is as always: practice from your stand height and you' ll know how to handle it. I do know guys who range to ground objects from their stand, but thats how they practice and have their bows sighted in.

Good Luck!