I haven't tried the others, but I like the first one. It seems better than the one posted in the main area.

velocity = [0, 1, 9, 17, 25, 33, 41, 49, 57, 65, 73, 81, 89, 97, 105, 113, 121, 127; 0,0, 5, 12, 21, 32, 44, 53, 59, 64, 69, 76, 86, 97, 108, 117, 124, 127]

Obtain by the calculator:
input: 1->127
step: 8
map: 1 -> 5
fx: sin(x*3.14)+x*7
range: 0 -> 127

Here's the pcc file:

<?xml version="1.0" encoding="UTF-8" ?>
<curve version="1.0">
<description>A double hump shape using two cycle of sin(), off by a phase...
The "x*7" component is used to straighten it out </description>
<in_from>1</in_from>
<in_to>127</in_to>
<step>8</step>
<fx>sin(x*3.14)+x*7</fx>
<in_map_from>1</in_map_from>
<in_map_to>5</in_map_to>
<out_from>0</out_from>
<out_to>127</out_to>
</curve>

velocity = [0, 1, 17, 33, 49, 65, 81, 97, 113, 127; 0,0, 23, 40, 53, 64, 75, 89, 106, 127]

I produced it with my velocity curve calculator i posted on another thread, with the following (non default) parameters:

Input range:        1 -> 127
map input to:      -1 -> 1
f(x):                     pow(x,3)+2*x
step:                   16
Output range:     0 -> 127

Velocity = [0, 15, 24, 40, 77, 95, 111, 127; 0, 13, 28, 42, 60, 77, 96, 127]

I'm using it with the normal key touch (#2).

It feels more expressive and natural to me than the linear setting. It's easier to control piano and mezzo velocities when playing fast passages, while not losing the Fortissimos.

It should be compatible with the FP-5 as well...

Enjoy,
Eran