Vinnie, read through Dr Ashby's reports on the forum...it can be a little tedious, but the info is there to answer most questions you have....
As Apex says above, the Good Doctor found that increased arrow weight, combined with high "front-of-center" (balance point) showed significant performance gains, even in lower-poundage bows...you may want to look at gaining your arrow weight by adding weight up front...and as Apex says, it makes that much difference. If you like the 100gr BH's, you can use adapters to increase your weight....