Using the 200 grain Woodyweight with the 160 grain blunt / broadhead, I'm using them on 30" 125/135# shafts out of my 75# Hill Wesley Special. They fly nicely. I'm hoping to kill a buffalo with the set-up. The arrows weigh 1120 grains or so.
Just over a year ago, I gripped the silent double-barrelled .500 Nitro Express and watched spellbound as my mate, Alex, stalked his way to ten metres from a buffalo cow and sunk a heavy wooden arrow right through her chest, using his heavy Black Widow longbow. The buffalo only made fifty or so metres. He used Woodyweights, and happens to be a bit of a guru with them.