I'm going to be stopping by Cabelas tomorrow (Rogers, MN store). A couple of questions... do the new ViBrake inserts that come w/ the ICS hunters add any appreciable weight to the arrows, compared to the ICS hunters I currently shoot? Opinions on the ViBrake technology.... what do you guyes think, is it a techno gimmick? Will I notice a difference in their shooting? Also, do the Cabelas Stalker Extremes come w/ ViBrake inserts? Thanks.