I don't get it. If you are shooting within 20 yards, what is the extra control going to buy you? Maybe it stabilizes flight faster, but at that short of a range, I would think that it doesn't matter.
Think of it as both ends of the spectrum.You could use abare shaft (fletchless) and have no stabilization on the back of the arrow or havemaximum stabilization (larger helical fletches).Thereareall kinds of stuff inbetween. Does it matter at 20 yards would depend on a lot of things including but not limited to personal form, broadhead type, rest type. For me I have to use feathers because I shoot directly off the shelf of my bow and I use fixed broadheads.