Originally Posted By DusterKid
by effective length is that the tube length or the distance from the end of the ball to the inside of the cup?
effective length is from the ball to the bottom of the cup, the proper way to get that dimention is to use a 5/16 dia ball bearing and place it in the cup after you get your length set and subtract .312 from the overall length dimention.

Last edited by dartman366; 02/11/18 07:51 PM.
Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.