I am using the C298-n6 with the KS1. Before that, I was considering the C258-n6 but the C298-n6 is actually a clone of the Gitzo Explorer and allows the vertical shaft to be used sideway. The built is superb and it is completely stable. if not for the Benro label, I would have thought my tripod could pass for a Gitzo. The KS-1 works very well too and is also very well-built. The combination is very good value for money. I got mine in Shanghai where the prices are really very competitive.