[cglrcng]

We used the round polycord during Rebound Rumble (thicker & much smaller hole and very stretchy unlike the pnumatic tubing), and used a small alum. 1/2" barbed nipple w/ a center outside diameter equal to the outside diameter of the cord, so it worked perfectly w/out jambing up our pulleys as the joints rotated through), that barbed joining nipple was nearly impossible to push into each end, especially when it was stretched on the pulleys installing in the bot, but very hard to pull back out (usually had to cut those barbed nipples back out w/ a razor knife to re-use them), to join both very straight cut w/ a razor knife ends.