Vince, Duncan, Nick, Tav, Jake, and Jon.
Jon was upfront digging aided by Tav, Jake and Nick were shuttling the buckets backwards and forwards along the rift, me and Duncan were responsible for spoil disposal. I collected the full buckets from Nick, handing over an empty one, the filled bucket carried over to Duncan who proceeded to empty the contents onto the spoil heap, filling all available nooks and crannies. The sediment a mix of silt and sand with some lumps of calcite now and then. The buckets came and went at a good steady rate, a productive session.