I also use winged nuts, but put them under the field tips. There's also another kind of nuts - don't know the English name - with four spikes, which are hammered into wood. They make quite good small game heads. I don't shoot them often because they destroy the target like a missile I have a YouTube video as far as i remember.
2008 Martin MOAB - 45-60#, set at about 51-53# / 55#" Perfect Line" compound/ 55# Mongol horsebow/ 45# "Perfect Line" takedown recurve/ 45# Bearpaw Grizzly hunter recurve/ 55# Samick Longbow Cheetah ... and several homemade bows