Hi Leady,
I've been shooting at about 6.5" brace height but am going to try raising it to 7", which I'm told "calms her down". Not sure she needs it but I'm going to have a try.
Arrows need to be overspined from what the chart says, in my experience. I'm supposed to be in group T7 but chose T8 arrows and they are still too weak by some way!
Have fun!