Popped down with Tom on Wednesday. Pulled some rock out and did some more capping of the rock ledge which turned out to be at least partly big Boulder. Back to something solid now though.
Big void behind the boards up to the second ring- I think that's where we should start going diagonally rather than at the bottom of we will end up with a grovel or squeeze half way down the shaft! Also because of the huge void- there's less digging required and less need for back filling.