^Thanks Vic, I was going to let them know.
Upon further investigation the bore hole is actually centred with the blades and the yolk (good), but the cast itself appears to be off (i.e. extra material to one side). We think we can save it by turning the hub from the outside.
The blades have gone in to a local shop for some build-up and they will be refinished.
One question I do have:
Where is the hub or blades built up to stop the blades from touching at the tips when closed? we want to do it right.
