So I tried SDK v3.3.0-beta1-sdk1: Same results.
Setting jump speed does not change anything.
Setting fall speed to 0 means no falling, 100 or so means maximum fall speed, but I want even more speed.
Same effect. UPDATE: Have to repeat test, lib/jar is broken, see below.
Side note to jbullet: I had to add both libraries: jme3-bullet and jme3-jbullet.
Otherwise there are unresolved references.
And in my Eclipse IDE I have to add vecmath, but you were talking about libraries, not jars. For Eclipse I have to add all jars of a library.
My guess: the bug fix covers the API differences between bullet and jbullet. So same values have same effects.
UPDATE fall speed comment