I need some advice on arrow length. I have an opportunity to buy some carbon express 6075 Terminator lite arrows at a good price 1.50 each, there brand new with fletchings, noc and inserts installed. There 31" long. First is that a good deal? Ive checked some charts and they seam to say they will work, But I'm new at archery. I'm shooting a PSE Nova hunter S8 it's set at 60lbs and 29" draw length.