Disabling collisions on mounted objects

I'm trying to disable collisions on staticshapes mounted on an object (in my case a player).

The mountobject method for the ShapeBase class contains this code snippet:

// Since the object is mounting to us, nothing should be colliding with it for a while
obj->mConvexList->nukeList();

Yet the object mounted on a player (I'm attempting to mount a sword) will still collide with the player it is mounted on as it becomes impossible to move (I'm guessing the two collision boxes are intersecting). Plus this snippet of code seems to want to disable the collision on the object with everything, I'd want to just disable it with the object it is mounted on.

I'm sure this can be done, I've taken a look at some Item class methods and noticed that the setCollisionTimeout one sets a property (mCollisionObject) to the a certain object and will then not disable collisions (obj->disableCollision()) with it until it times out.

So I tried the disableCollision() method on the object I mount on my player (in the engine, and I tried adding console commands for it). The commands do get sent but nothing changes with the console command. While with the the obj->disableCollision() in the mountObject method the object gets mounted but is then not visible (and collisions no longer work with anything). I know it's there as I tried a gettransform on it and it is moving with the player.

I think I'm still too much of a modder and looking at this the wrong way perhaps, would somebody be so kind as to help me out or at least point out why such things are happening?

Thanks for the read.