Ok, here's the deal. I am tinkering with my new bow and I'm trying to find the "sweet" spot for the brace height. I have gone from 5 3/4", up to the current 7 5/8".

Here's my question. I can feel the hand shock decrease as I increase the brace height. Shock is almost non-existant from 7" to 7 1/2". How much shock should there be? As I get to the top end, I begin to hear a "twang" like a guitar string. Where do I keep it at? Do I keep going up? Go down? Leave it alone?
Now, when I switch to the right arrows for the bow, is it going to have to change a little one way or the other?
I am currently using a 2216 Aluminum arrow, almost no feather left on it. The arrow length is 29 1/2", and my draw is 28".

Maybe I am making this out to be harder than it is, but I want it to be right. Thanks for any advice that you can give me.