RE: Im looking at this one.....
It will do the job, as long as you do your part. 40# is plenty (as long as it's legal in your state).
Short bows like that are nice in tight spots, but they are picky--I don't care what brand it is--compared to a longer bow it won't be as forgiving or as easy to tune.
I don't doubt RB's experience--for the average hunting shot, it probably won't be a big deal. I see it like Hill/Hill style longbows--they have handshock, some folks just notice it more than others.
Folks are still killing deer with old Bear, Pearson, Root, Shakespeare, Wing, etc. etc. etc. bows that are 30+ years old--the monkey behind the bow makes a lot more difference than the bow itself. I used to shoot tournaments with a guy that shot a butt-ugly old Bear "Black Bear", and he was one of the best shots I knew. It just tickled him pink to whip up on guys toting bows in the $1,000 range with a bow that might bring $50 if someone was desparate for it. He killed deer with it too.
Chad