RE: 60# or 70# ?
Here is another thing to think of....
If I make a marginal shot at 15 yds on a whitetail and it runs out to 55 yds, having a 70lb flatter tragectory bow that I can take an accurate second shot on that whitetail vs. a 60lb bow that might not have enough power to get out that far......well, that is important to me.
I would rather have a follow up shot than a 3 hour wait and a6 mile tracking job.