Understanding IBO

Darton calls their speed projections real world speed. So far they're very honest about what they claim from my experience. The Sequel line are very nice imo.
 
Seems slow my Lift X at 76-77 pounds is slinging a 535 in 290s at 29 inches that may be my chrono inflating the numbers but it sure makes me feel good lol also that’s on a last chance hand scale so could be + or - a couple pounds


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