I don't understand how someone can calculate the spin on an arrow and get the broadhead to contact the animal in a certain position. I guess it can be done, but that is way beyond my brain. When we get into all the calculation, it reminds me why I never shot a compound. Just way to many things to think about. My only thoughts when hunting big game like African animals ( I was just over there a year ago and took 6 animals) or even elk, is shoot as heavy bow as you can handle. I shoot 70 lbs and heavy arrows. Maybe over kill to some, but there has to be a line where your equipment is to light or even questionable.
Congrats. of some nice animals. I was in Namibia and have two friends over there now with the same outfitter and they are both doing well.