The G5 Montec is the best flyingfixed blade I've seen, and I've tried a lot. All I do is spin'em on an Apple Arrow Spin Tester to check for any wobble, then shoot'em a few times to be sure. Out of a dozen arrowsI can usually find at least7 that will shoot near perfect in comparison to my field points. As long as your bow is set up correctly, and you havethe right size carbons, you'll have lots of luck with these broadheads.