Igot a fletching jig this year (biz) so i have been playing around with it and trying different things. I fletched two arrows with 4 feathers (4in) with as much twist as I could get out of my jig. I shot them with fp and thy flew real good. so I put on some old thunder heads 100gr. went back to 50 yards and shot. when I got to the 3d deer I saw that the feather where touching. I said it was luck so I shot 2 more , same thing.. I shot 10 more timeswith the two arrows groups no larger than 3in. ...I think this is going to be my hunting set up this year ..