DavyCbecause other scripts (like the ones that rebind your left mouse to jump+shoot for one click) still require a modicum of timing(just like natty c-taps) and are very possible to whiff, whereas the 1tick script is--after a few minutes of practice--truly impossible to missinput
The jumpshoot one is unfailable because it doesn't matter how long you hold down crouch before you hit unduck+jump+shoot, as long as you don't fully crouch. It requires no timing whatsoever. The 1-tick is absolutely failable because you need to time the rocket based on what angle you want to jump. For max distance/height, the rocket needs to be tick-perfect with the ctap input. If the rocket is late by 1-2 ticks you get a jump equivalent to the jumpshoot bind or a normal crouch jump. Earlier by 1 tick you get a standing rocket jump.