I came across a video on youtube where a guy was shooting a Vertical crossbow. I have shot bows for 30 years and I could see the advantages of having it vertical. Power stroke, the ease of getting around through the woods, shooting less poundage and shooting from a freestanding or off hand style is more accurate. The shoulder stock would certainly give it more stability. The weight of the bow was about 5 1/2 pounds, that has got to be a big +.