I take ... that as closing the debate ...lol Makes perfect sense. I guess that's how we've arrived at "normal weight" arrows being somewhere around 425gr-450gr through the trial & error of the masses. It was an evolutionary thing no matter what kind of hanky-panky the crossbow manufacturers were playing with speed numbers using straws for arrows. If I wasn't shooting a railless Ravin and the apparent archer's paradox susceptibility I wouldn't reject an above the 400gr arrow that I'm using now. The 400gr Ravin arrows shoot lights out for me and kill like assassins. I wouldn't mess with that. I put a couple GoldTip down range and they hit about 6" low/right. Kinda told me archer's paradox is far more at play with my Ravin than with my Scorpyd.You are absolutely correct!
But I wish I had the data on paper to show you the success rate differences.
Over 22 years there was a ton of bad hits, lost deer with light and fast arrows. Didn't get a single report of a loss from a hunter shooting heavy FOC arrows. Oh I got reports of bad hits but in every case the animal was harvested because even though they had a bad hit, the heave arrow took out enough bone to bring the animals down.
Had I recorded the data over the years I could show you very accurate %'s showing heavy would win and have the higher success rate of harvest over lost deer.
Now let me clear something up
Most of what I have been talking about is physics based facts but we need to understand the crossbow crowd has a leg up from the get go.
Arrows are short and stiff which increases the efficiency of an arrows ability to penetrate. They also average 425 grains and pound for pound are much faster than the vertical crowd. Plus FOC on crossbow arrows is in the 20% or higher range right out of the box
So when I began getting serious about crossbow arrow building some 12 to 15 years ago I backed off a bit on weight, FOC etc.
If a customer wanted heavy, I was all about it! If guys wanted something more standard I tried to keep them in the 92 to 110 insert range..