For 3d I would use my hunting arrows unless they were too heavy. Now if you are into serious spots you will want a fat shaft so that you have a better chance of cutting that line. Gold Tip Xcutters, Gold Tip 22's, Gold Tip 30x, Carbon Express Line Jammers, Carbon Express X-Jammer, or Carbon Express CXL-2, it all depends on how many lbs you will be shooting.