They can be a little touchy to set up, but once you have them dialed in- they are fabulous.

Some tips for setting them up- read the directions supplied with the unit! They are pretty decent.

Lower the poundage on your bow to it's lower limits as you'll be pulling it back a LOT of times.

Having someone else help you will speed things up tremendously. While you are doing the pulling back, have the other person do the adjusting of the set screws per your directions.

Close your eyes and pull your bow back to your normal anchor point- now open them. Is the No-Peep lined up? If not you need to adjust some more. Make sure you line up the NP to YOUR form, not the other way around. You shouldn't be adjusting your positioning to the NP.

If you open your eyes and the NP is not lined up, you'll need to move your head around to find out which way the NP needs ot be adjusted. This is where the other person comes in handy. You can tell them to adjust up/down or left/right depending on where you need the circle to be. it might be less confusing if you stay with adjusting one direction at a time- that is get your left/right or up/down in the ballpark first before doing the other axis. Once you do it a few times it gets easier.

Now after you've done all this pulling back and adjusting, put the bow away for a few hours or better yet, overnight. Then come back to it later (the next day) and close your eyes, pull to anchor, and open them. It may need a little tweaking of position now that you have a fresh set of muscles and good form. All that pulling back and holding can degrade your form a bit while initally adjusting.

Best of luck!