When I missplace mine or just dont want to use it,I just string it the old fasion way,left leg between string and bow with the tip on the outside of my right foot and with the left hand bend bow to the right over leg sliding the sting up with my right hand into the tip/string grove and done,same to unstring.....
I also find it faster to do it this way,also it's good to have a tip protector on the one tip that way you wount scratch the tip by mistake.
Some of you know what I just tried to explane.......