Both have identical power strokes. The arrows will impact the same at 50 yards. At 20 yards, they will impact about 1.5 inches apart then slowly converge at 50, then slowly separate beyond that.I want to know how you sight it in to get both bolts to hit the same spot at different yardages? There has to be a difference as the pic makes it look like the lower limbs have a shorter power stroke, plus lower rail? What is the total weight compared to "normal"?