Solved Pessima chmsl not reacting to position changes

So, the chmsl flexbody line looks like this:

Code:

        ["pessima_chmsl", ["pessima_body"], {"pos":{"x":0, "y":-0.25, "z":0}}],

but it isn't moving. It's stuck in its default position.
Is there a reason why?

In the meantime I'll just make a separate mesh that's the chmsl but moved.
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Still looking into ti but I think I'll figure it out on my own.
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Update: it should work if you do it like this:

Code:

        ["pessima_chmsl", ["pessima_body"],[],{"pos":{"x":0, "y":-0.25, "z":0}}],

I forgot the [], apparently