Kick Method!..thats what a gentleman by name of Dan Quillian use to teach...Deflection off the Riser!...Here's my personal cheat sheet for Easy arrow tuning...I can shoot 3 different sizes ( 2317,2315,2219) bullet holes through paper
1. I shoot 1% top finger ( on a split grip)
2. I make my site window past center 1/8. Side restplate pushes it to center
3. My arrow sits 1/4"-3/8" high off the shelf. ( i make a homemade feather rest to elevate it) really gives me a clean launch
4. I'm always conscious of my brace height..1/8 lower or higher will ceate the wiggle
Spine is part of the equation but bow setup as OL hinted is probably more important