Need help with beta compiler

[Hesyr]

So, i need help to implement jiggle bones using the tf2 beta compiler.
I tried a bunch of things and nothing worked
Editing the .qc didn't work either.

The qc

$upaxis Y

$modelname "<ITEMTEST_REPLACE_MDLABSPATH>"

$surfaceprop "default"

$body "default" "<ITEMTEST_REPLACE_LOD0>"

<ITEMTEST_REPLACE_LOD1_HEADER>
{
replacemodel "<ITEMTEST_REPLACE_LOD0>" "<ITEMTEST_REPLACE_LOD1>"
}

<ITEMTEST_REPLACE_LOD2_HEADER>
{
replacemodel "<ITEMTEST_REPLACE_LOD0>" "<ITEMTEST_REPLACE_LOD2>"
}

<ITEMTEST_REPLACE_SKIN_OPTIONALBLOCK>

$sequence "ref" "<ITEMTEST_REPLACE_LOD0>"

$attachment unusual "bip_head" 0 0 0 rotate 0 0 0

$jigglebone "jiggle_1" {
is_flexible {
yaw_stiffness 100
yaw_damping 5
pitch_stiffness 100
pitch_damping 5
tip_mass 20
length 20
angle_constraint 15]
}
}

what am I doing wrong?

Ps: yes, my model have the jiggle bones in it.