We are lacking fair amount of information to determine an optimum spine & if your old arrows may perform well for you for your new bow. What spine are your old arrows and what are you looking to do with said arrows? Are you seeking speed or momentum?
Personally I lean fairly heavy to a quiet arrow to achieve momentum with weight of 450 grain plus total arrow weight for penetration based on my observation.
Last edited by Hunterapp; 02/02/20.
love, joy, peace, patience, kindness, goodness, faithfulness, 23 gentleness, self-control
& Proverbs 21:19
| 
