When I hunt with metal heads I like the high FOC. 200 grains, usually a 70-75 spine shaft is what will tune best out of my 55# recurve with that weight of a head and I use Ash shafts. I can shoot to 40 yards accurately with that set up but keep shots to 25-30. Yeah I lose a bit of speed but the energy that thing packs! It's like a train hitting a car compared to a bus. The lighter arrow will do some damage but the heavier properly tuned arrow will shatter both scapula's.