I don't think at 15 yards any of use shoots good enough to tell the difference. At least for me.
For years I fell into that train of thought and PERSONALLY only made and shot a 64" bow. But because of a couple strokes in 06 it made me a total ground hunter.
Even though I could now, I'll never climb again. Now if I call off my stool or milk create I just get up. I buck hunt off milk creates at all ready set up sites. I turkey hunt off my butt so a time back (06) I started makeing my personal bows 54 to 58"s. Like I said I keep all my shots under 20 who could tell the difference. I still hit a inch or 3 from where I want EVERYTIME. The bucks and gobblers sure can't tell the difference.
SHOOT WHAT YOU SHOOT BEST I DO