Okay, that would make sense for GM Teleport, but not for speed hack.
Unless the server also checked how fast you move between coordinates, but thats not the problem, cause if you use the current (no working) speed script and run a very long distance, but then you get hit by a mob far a way from where you started, you wont get teleported back.
The same thing happens when you run a very long distance and stop at very close location to where you first started to run; you wont get teleported back.
Anyway, if you didnt understand what I just said, do the following: go to whatever map you wanna vac, start running and pulling mobs and when you think you got enough mobs, run back to the starting location to kill the mobs.
Unless the server also checked how fast you move between coordinates, but thats not the problem, cause if you use the current (no working) speed script and run a very long distance, but then you get hit by a mob far a way from where you started, you wont get teleported back.
The same thing happens when you run a very long distance and stop at very close location to where you first started to run; you wont get teleported back.
Anyway, if you didnt understand what I just said, do the following: go to whatever map you wanna vac, start running and pulling mobs and when you think you got enough mobs, run back to the starting location to kill the mobs.