I am shooting a Diamond Marquis at 68# 30" draw. Gold Tip XT Hunter 7595 with STRAIGHT Blazer fletchings? I am dead on with field points but my broadhead are around 6in low and left and not even in a good group. I am using Muzzy 100gr 4 blades. My bow is in perfect tune and my my field point groups at 20 and 30 yards are all within a 2 inch cirlcle. Could it just be the blade or what? Remind you I have no helical twist -- could that be the problem? (Note: I am not gonna put a helical twist on them due to the rut coming within the next 2 weeks and I can't afford right now). Do 3 blade fixed blades fly better than 4 blade? What about going to a mechanical for now just to make things easier? HELP please.