Surgical tubing band clamped onto the sling shot posts will give WAY more power (if you can get the good tubing). We used to use it to shoot the 1" ball bearings when I was a kid. They would punch holes in 5/8" plywood from about 5yds, length of pull stopped us from really hitting the rigs potential(4'5" then... 6'2" now). Now that I'm all growed up, looks like I may need to rethink my slingshooting. A realy long shaft with some propper heavy tubing might just work. My wife is gonna love this one!