mObjBox, flying trees, and just lots of problems

I'm trying to get a stupid object box to scale to the size of my tracer object, otherwise I need to cull based on the tip which is really stupid.

I'm getting a LOT of problems. What happens right now, is, if I shoot a lot, objects will start flying around the screen and scaling themselves and particles will appear as giant planes cutting into the terrain, layered ontop of eachother. It's like some sort of apocalypse scenario, as viewed by a person on a lot of stuff. And I dont like it either. I have a sort of debug box being drawn, along with a trajector path, and they fly around too. You'd think it'd just attach to the object and be scaled incorectly, but no, it flies.

here is how my scaling works:

void Shocktracer::updateWBox( )
{
	if(ringList.first() == NULL)
		return;

	mObjBox.min.set( 1e10,  1e10,  1e10);
	mObjBox.max.set(-1e10, -1e10, -1e10);

   ShocktracerRing* ring = ringList.last(); // from back

	Point3F relRingPosition;
   while (ring != NULL)
	{
		relRingPosition = ring->position - mCurrentPosition; // ring->points[0].position

      mObjBox.min.setMin( relRingPosition ); 
      mObjBox.max.setMax( relRingPosition );

      ring = ringList.prev(ring);
   }
	mObjBox.min.setMin( Point3F( -1.0f, -1.0f, -1.0f ) );
	mObjBox.max.setMax( Point3F(  1.0f,  1.0f,  1.0f ) ); // to front



   MatrixF xform = getTransform();
   setTransform(xform);

   resetWorldBox();
}

It should work, in theory. I've moved those last 3 things around (basically setting transform and resetWorldBox) and commented and etc, but it doesnt fix anything.

When I force the box to be -1,-1,-1 and 1,1,1 there is no problems what so ever, other than that it is an awful way to cull the tracer.

Some questions I have regarding this mObjBox feature are:
1. The box position is relative to the render transform, correct?
2. What could cause the box to fly around (and I mean FAST)?
3. What happens if the render transform is outside of the box?
4. Is the box moved to be centered on the transform, or are the max and mins preserved, and 0,0,0 used for the render transform?

And of course, if someone could tell me exactly what I'm doing wrong, that would be excellent.