LJ Question

So I'm fairly new to this whole KZ thing, but definitely not CS in general. I can complete any map no problem even the hardest maps (not in record time of course) but i'm working on it. The problem I have is long jumps. Sometimes I will get 230 and sometimes 219, but I feel like I do the same thing each time and get a different number. I was watching some people who kept consistently getting 240 and I watched their movement. It seemed like they started out sideways and facing the ground, when they jumped and were in mid air they wiggled their crosshair really fast. Does this require a higher sensitivity? I play with a sensitivity of 2 (I always have) my movement seemed much slower then theirs. What are some advantages to getting longer jumps and how can I practice these methods? Thanks for any help.