Mixed messages here,do I need cx 300 or cx400 arrows,and Gt 5575 or 7595 arrows for my specs.I don't want to lower the poundage.Also do the quickspins make a differance over regular vanes when fletched right helical?Specs again are Outback 28" draw 69 lbs. Quad ulta drop away rest.100 grain tips want to shoot a 27 1/2" arrow