RE: Draw weight
I've never heard a single person basing a bow choice on an arrow they own until now. And I've never seen draw weight choice as arbitrary. A person decides what bow they want and chooses a draw weight then buys arrows for the weight. if they have to turn the bow down a little due to not being able to draw it then thearrow is slightly stiff. Which is perfectly fine.
Yes, you may have to adjust the draw weight for an arrow. However, if you plan it out properly and purchased an arrow close to what you want and then add weight as needed youprobably will not have too. Also, asI stated before. Most hunters prefer an arrow that is a little stiff over an underspined arrow.