Above the spine. That setup should work well for him.My son is shooting a diamond edge, 25in DL at 35-40#s. Easton axis 500s tuned with a 200gr VPA 2 blade. Got a shot at a young doe this year and hit high near the top of the shoulder blades. Couldn’t find the deer or arrow but got pics of the deer later with a hole through the top of each shoulder. Not even walking with a limp in the trail cam videos. It was a 10-15 yard shot. And he was 15ft high.