those are my target arrows. my hunting arrows are the carbon express terminater lite 60-75s that is what is producing the 312 the + is coming out of the carbon force extreme 400's. the adjusted draw weight on this bow calculates out to 66lbs. Carbon express recomends the tr4560 for this bow setup i am using the tr6075 well within range I have done the research behind the arrows and know the grn/in, spine, diameter of everything I use. If it is not within the limits I wouldn't use it. As for this length of arrow in this poundage of bow they don't test. 25" is the shortest testing point unless you contact someone at pse and ce wich I have done. The tech's have concurred.