[JAVA3D] Updating geometry

[Sackmunky]

I want to be able to send in data to a LineStripArray every so often nad want to update the lines length. I already have it placed in the scene, and want to know if I should just access the same BranchGroup with the shape in it and change its data or should I build a new Branchgroup with the updated line and add it to the scene while removing the other one.   Thanks   Zak