Another way you could let the user chose bounds is making a parameter in the xml file( witch would not be as good for me). You could do both by letting the File override the parameter.
jbr.setProperty(“bound”,“box”); // (or “bound”,“sphere”), but default is sphere
jbr.loadBinaryFormat(file);
In and commited. When jME’s BoundingVolume design becomes more complex with lots of various BoundingVolume types, I’ll make a special tag for BoundingVolume things.