Neil and Andy set off down Tunnocks behind Andrew and Becka. We soon catch them up when they have to rerig the entrance after the rockfall. We decided to drop Neil's pitch, he starts to rig. I decided to have a quick look down a slot in the floor. I pop out at the bottom of the pitch to Neils surprise!! Way on is dodgy climb so we backed off tails between our legs to the 100m pitch. I finished rigging it with only just rope to spare to discover a hole to the left, leading into blackness, with a long drop with a rock. Back out derigging and hoping drill doesn't break!! Derigged Konisberg then out with heavy bags in the ratio 1:2 (Andy:Neil).