I put you bow up on my program and the pse X force 7 GX at 60# 29" draw shooting easton axis st 400 arrows with a 100gr tip
range yds , drop in. , K.Eft/lbs , velocity f/s
0 , 0 , 68.6 , 283.2
20 , 8.8 , 65.2 , 276.1
30 , 19.97 , 63.6 , 272.7
40 , 35.8 , 62.1 , 269.4
60 , 81.84 , 59.2 , 263.1
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using a easton axis st 300
0 , 0 , 68.9 , 267.2
20 , 9.88 , 65.7 , 260.9
30 , 22.4 , 64.2 , 257.9
40 , 40.12 , 62.7 , 255
60 , 91.61 , 60 , 249.5
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If you don't understand the numbers thats ok. I didn't when I first started years ago. You have a fast bow, and I shoot the axis arrow in 340spine and bt4 gave the numbers for a 60# with the 400 & 300spine. You can drop to the 340 spine and your numbers will be between the two listed.