I replaced 6sixes with saints and Wolf Tooth 30 stainless. Went from clipless to flats. Also replaced a worn out chris king headset. The new upper is a cane creek 110 series. The new lower is from a FSA pig DH headset for 1.5". The Pig is the first medium quality, low tech piece of equipment that I have been exited about in years. It is very, very heavy and crudely sealed, but what a huge improvement in front end stiffness! Chris King and Cane Creek made the fork feel like a wet noodle in comparison. The pig comes bone dry, so you have to fill the cage with grease yourself. I like it so much I put the reducer version on my DH bike as well.