So I'm trying to work out a good arrow tune and finally built myself a good blank bale. 6 bales of straw, stacked up on some skids to get airflow under them, I have them tarped and 2 ratchet straps to hold them together. I'm running into issues of my arrows just blowing through this and it feels like something is wrong and counter productive. I'm shooting a 55@28" praire predator I draw almost 29" after expansion.... shooting about 600 grains of arrow with 24% FOC. Any ideas gang?