Tuned my bow yesterday and broadheads flying great.
So decided to double check w the 3 Rivers dynamic spine calculator.
I was 4 # off between bow and arrow.
But they fly great. Paper tune is bullet hole.
NOTE..........using the calculator, it doesn't factor in the added length of heavier/longer inserts.
So I just changed the shaft input less an inch and was over. Barely. Input doesn't allow half inch adj.
But splitting the diff, yeah, I'm dead on.
Assuming no +/- form issues. Left that at Zero.
So.....if youre off a little w the calculator, keep in mind a longer insert or added weights to, gobbled available length for flex.
Have to fudge that in.
