http://arrowskp.com.  
Read what Kelly has to say about tuning. It seems oversimple compared to a lot of the information we're used to - but it has worked as well, or better, for me, than overthinking it. Don't skip reading what he says about broadhead tuning, too.

Kelly is no longer in business (as he describes on the webpage), but has generously offered some of his knowledge. He's not selling anything, so he's not competing with our sponsors (who I do buy from). Just a reference.
As I understand it, he is VERY well respected by those who dealt with him while he was active. Just have a read, and a look at his spine chart, and see what you think.

Says "Site not found" for me...

It works, great link

Can't get on it .

It says site not found for me as well

Try typing in the address rather than copy or paste; may be a computer compatibility issue.
I just tried it again, both ways, and it comes up fine for me.

There is a period at the end of the .com that is messing up the link, should be .com not .com.

good tuning thoughts, I like simpler solutions!

Good stuff.

This link might be more direct

http://arrowskp.com/site/3036a979aec042048e599a3cf4a0604e/default?url=http%3A%2F%2Farrowskp.com%2FKelly_s_Tips.html#setup-tuning

Link on original post worked for me.

Good read

I liked the tip of using the cock feather in. this makes sense to me. I will be trying it.

Good read, I saved it to my favorites.

Good information, thanks for sharing.