I have pre-assembled the Green Skid Plates onto my Woodcraft engine covers but have not yet installed them on the bike. My first impression is these are high quality, very strong, great looking armor for my Kawasaki ZX10R. I can't wait to get them on my bike. I do hope, like everyone else that buys them, that I will never actually "use" them but, it is very reassuring to know that if I do my bike will have the very best protection. Also, as someone who has worked in a machine shop for 37 years, I can comment with more than a little experience with machined parts that the craftsmanship of these skid plates and engine covers is excellent. And for those who don't know the difference, when you machine a part out of 6061 Aluminum billet it is better in every way compared to a "cast" cover. You can't go wrong with Woodcraft engine covers. I highly recommend getting them to protect your bike. Thanks Eric!