Mbrock has a wealth of knowledge and I agree with him. I know everybody has their own preferences and good and bad experiences. But mine is Excalibur recommend a 150 grain head for broadheads with their bolt cutter heads. The light arrow craze and light broadhead craze has its disadvantages. Cnc it would be interesting to know how far the shots were on these deer and how heavy of arrow . I ain’t by know means an expert but back in the late 70’s when we went overdraw light arrow craze for tournaments then tried to hunt with that same setup we lost some deer also it was louder