If anyone goes down Growling be aware of loose rock on the big pitch, even at the very top where it looks stable, it is not. A large flake of the wall came off at the Y-hang 6m down. Thankfully I was rigging at the time so all did was explode very loudly below. All I did was lean on the wall to thread my stop, well that wall is no longer there! I guess the best bet is to go up and down the whole thing one at a time but that will be a long wait at the bottom.
Its not the only incident there, on a previous trip down there a large chunck fell off from above, so I advise caution on that bugger.