Thank you all for commenting. I really appreciate it! What I did was I bought the 99 Flare 2008 Wood for 800 euros (used) and thought I don't have the time to wait with that good of a price. I'll probably keep the two boards for a while and then sell the Joker later this summer. I got a superfloaty 144 litre for very light winds.
It is true that I haven't tried hard enough to make those jumps on any board but now I cannot hide behind not having the right equipment at least