Gobbleblaster,

I am using this for the first time this year and I love it!! You mark your yardage on the yellow tape side. To use the pendulum sight, you zero in the sight at 25yds and set the pin to this mark when you release the pendulum. Very easy!!!

Just be sure that you purchase the latest model. I purchased one at Cabela's, and when I had it installed on my Bowtech,I was told that the older models had problems with vibrations misaligning the setup. I exchanged itfor the latest model. The newest modelcorrects this problem. I have noticed no problems yet.

Good Luck!