If I have been using Carbon express Terminator hunter @ 11-12gpi If I switch to a new arrow such as the Maxima or Maxima 3-d select with a gpi rating of 8.2 gpi, what kind of "reactions" will happen? I would imagine the new arrows will fly faster, will I have a significan loss in kinetic energy? Will I notice my bow noise going way up when shooting the new lesser grain arrow? If I start having a noise issue what can be done to rectify that problem? With the new much straighter arrow will my grouping become tighter?