Just booked the lock for 1030 this coming Saturday. Race to the Shoots and back, starts 1115, should be done and back in dock by 1430.
Which is perfect, as I need to be back in Gloucester for a soundcheck by 1730.
Photo was taken last Monday whilst waiting to lock back in at Portishead. Google magic stitched together a series of snaps from my phone into what I think is a very nice panoramic.