As a mechanic, and competitive rider I use this product to make sure every valve adjustment is to spec . I like how every kit has a magnifing glass to easily ready each number on the shim. I also like how each shim is labeled in its own compartment . The one thing I dislike is the price per shim kit . There are two kits that you can choose from . One with .0mm-.5mm and one with even finer results . It would be great to have one set with all shims and at a reasonable price . Overall Hot Cams provides a great product that I would recommend to any one capable of performing their own engine maintenance .
Costa Mesa Ca