But it may be important to note that balance is perhaps even more important than sheer weight...
Definitely. I was thinking this when we agreed to swap out the high mass bridge. Superficially it seems a good move - remove some weight. But it's weighing on the other side of the guitar, it's making the bass heavier, but maybe it's also counteracting some of the neck dive.
I don't think I'll chamber the guitar yet - I'll get it back (a few weeks she said) and play a while and see how it is.