For hunting hogs you might wanna try the 20" for more weight [k.e.]. Fixed blade rather than mechs. Most arrows have a weight per inch, I think my carbons are 8.1 gr per inch. Looks like w/ them you would be 24 gr heavier. there's a formula that's real accurate that says your fps changes 1 fps for every 5 gr arrow weight change. Looks to me you are only looking at 5 fps for 20" arrows if carbon, you get the point, so you can figure your own out if alum. Hogs are tougher than whitetail imho.