The first rope mod I did (with lone wolfs) was the 8mm static rope, but I didn't like the stretch. Then I went with the 3/8 amsteel with a diy versa button (3/8") and liked that much better. Even on the LW versa it was fine, I just went around the button twice before locking it. DIY sportsman has the videos on all this stuff. I usually go off his ideas since he's already done the math!!! G2 outdoors' video on splicing amsteel makes it a snap!! Eastern outdoors has smaller versa buttons and the doublesteps to convert the LW's. Good luck!!! Mine are pretty long (the length of a LW strap plus the extension) for big old cottonwood out west. The extra weight is negligible!