Is this what you see when a mathmetician shows you his working out? Doesn't work yet. If it doen't work then come back in a bit. I'm probably updating it. what did I change? Before, it was just glide a certain number of seconds so for shorter lines it moved slower and for longer lines it moved faster. I thought that was weird so I added a bunch of maths (not that much, actually) and now it calculates the number of seconds it would take to go a random distance with a speed of your choice. NO REPEATS
Change the pixels per seconds. I used [glide {secs} seconds to x {x} y {y}] block instead of repeats so when you change the speed it will take effect in the next line. Things you can take: Measures length of line (Pythagoras's theorem) calculates the amount of time it will take to travel a certain distance at a certain speed. (My maths)