- Wind going your way (or, you know, the opposite way of you)
- Hitting the exact sweet spot for take-off (what is the exact sweet spot?)
- Not going down in the V too early
- Keeping your V relatively low, then making it even lower when you go past the 100-meters point approximately, to gain even more for the last part
Or what do you think? I'm no expert, and I'd like to hear from the people who can jump further than me.
