The big heads are in case you make a bad shot, like a larger diameter bullet, sometimes just a bit matters.
Like a local gal this morning missed an intersection and scratched the main gas line into town with her car, it cracked and leaked. literally I think 1 or 2 inches right she'd have broken it totally while dragging sparks. Poof.
A bigger head never hurts. But I've never actually seen a shot that would have made it for that, or not made it for narrow. Vice Versa.
First thing first, learn where it needs to go and then put it there.
I've never lost a single animal crossbow wise with 1 and 1/8 slick tricks....
I rarely shot anything larger than 1.25 with a bow....
Quit counting big game kills on deer at over 100 something with a bow probably around 2003 or so...realized how stupid keeping count really was.
