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Old 04-19-2018, 09:04 AM   #5
Rat
Ten Point
 
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Join Date: Oct 2006
Location: Bertram
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A couple of things...

1) Software always seems to chart my arrows as weak, no matter what I do.

2) It will depend on your bow.

Here's a good example.

Tribute, 28.75" DL, 300 spine arrows, 100 gr insert and a 125 tip chart weak but flew like darts.

Logic, 28.75" DL, 350 spine arrows, 100 gr insert and a 125 tip chart very weak.

Virtually the same bows in specs but the Logic did not like the 300 spine arrows. As soon as I tried the 350 spine arrows everything fell into place and they fly like darts. The 350 spine both grouped and bareshaft tuned better out of the Logic.

I know this isn't the answer you are looking for, but I have found that it is better to start with a range of spines (300, 340, 350 etc.) and see which one tunes the best with the least amount of effort.

I am in the camp that it isn't possible to be overspined, but some bows like what they like.
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