Try waiting until you bounce all the way to the bottom of the springboard before jumping again. You'll hear a boing! sound if you do it right. Sometimes you need to jump, land, wait for it to hit bottom, jump again, land, wait for it to hit bottom...
...lather, rinse, repeat...
Anyway, you'll get a little higher each time. As I recall, in Western Reaches, it's not very imperitive that you use any of those. Just nice.
Hope this helps!
------------------
EV Haiku- by Matt Burch
Turrets spit blue flame
I laugh as a patrol ship
Turns into space dust