I received the new KewlMetal risers last Weds. I really like being able to adjust these risers 3 different ways. The install was really easy due to the fact I had 4" risers already on the spyder. It took a little more than 1 hour to change everything out. I noticed a big difference right away. No more wrist pain. Which was the main reason I changed to these risers. IMO Matt and Kewlmetal have come with a great design with these risers!