by Sentinel » Tue May 02, 2006 7:55 pm
assuming that you're using the foam footballs, and it passes as a green strike (doesn't kill someone on impact), the top has to be greater than 2.5 inches in diameter (across). The football will most likely not pass without cutting off some of the top until it doesn't pass more than .5" throught a 2.5" hole. Also make sure that it doesn't have plunge (move up or down too much), or excess torque(spinning). Another thing to look out for is that the tip of a spear has to not hurt alot with a solid two handed thrust to the back.