Once we were full, Heather and I went on to get the lock ready, while Shane put away the hose and cast off. Heather and I then worked the several locks. We started at unlucky number 13. It's not that I am superstitious but it just seemed to have three annoying problems. Shane had warned us that nasty knuckle bashing was possible. The gate arm was sculpted with a diagonal cut on the edges which can help you not catch your knuckles on the gate when winding a gate paddle. However this time the lock arm changed to square, sticking out further, just below the winding mechanism, so that I couldn't turn all the way round. In addition it was so stiff I couldn't turn it easily. Heather put her windlass on the other end and we turned together but then she couldn't turn all the way as there was a rail along the top of the gate that blocked it, so we did a slow staggered turn. The rail itself should help people cross the lock gate safely but is not in a place you can reach without risking getting very oily from the gate mechanism. I wasn't looking forward to a flight like this, but none of the other locks had any of those problems, so all was well. Heather was clearly enjoying herself too.