Serverside holdtype

[Doktor haus]

I have a swep that changes its third person holdtype while E is pressed, but it only works clientside, so can only be seen by the person pressing it. What can I do to make it serverside?

function SWEP:Think()
    self:RunWorldModelThink()
    self:CustomOnThink()

    if self.Owner:KeyDown( IN_USE ) then
        self:SetWeaponHoldType("passive")
    end                                
    if self.Owner:KeyReleased( IN_USE ) then
        self:SetWeaponHoldType("ar2")
    end
end

[Rubat]

SetHoldType