So I built a paper tuning stand in my garage a while back. Last night I used it and when I was finished I was leaving bullet holes in the paper.... Today my wife and I took our bows to go shooting, I couldn't shoot to save my life.... I was shooting about 4 inches low at 20yrds and couldn't get a group at all. I took it to the counter and they moved my rest back to where it had been before last night. All was well and my final grouping was on target and all touching....I use a whisker biscuit, but am confused as to why my paper tuning was awesome but actual performance crap...

again....Paper tuning as just start..

As asked in original post... Why? If there a big difference in settings what is the purpose? Or is it really only useful with horizontal settings?

And a useless one at that!

Would you care to elaborate on that?

Paper is only a starting point in the tuning process that some like me skip.

Iprefer to walk back tune and broad head tune there is a sticky at the top of the page for walk back tuning.

Or down load and print out the Easton Tuning guide if they still have it on their site.