so the basic idea is you're jumping the second time already having upward momentum which gives you the boost?
Yeah, except it doesn't exactly give you boost, it just sets your upward velocity to a certain amount. It's bigger than regular jumping one, but smaller than e.g. when you use a vertical jumppad; hence why jumping off the edge after using a pad will slow you down (which is sometimes very useful to tell the truth).
For a double jump to be effective, the second jump needs to happen relatively soon after the first jump. When you jump off the edge after using a jump pad, you're just employing pmove_airsteps to reset your speed; if you got an actual chain jump, your speed would increase. Granted, an "air step" is required for a successful chain jump, but you also need the short spacing of the jumps.hence why jumping off the edge after using a pad will slow you down (which is sometimes very useful to tell the truth).
Hey, im pretty new up to the game. Wanted to look your video, but it's not available in my country and megaupload is down - could you re-upload it ? :E