do you have a dial indicator? Or good eyesight? you can check for correct operation of the CR. If you have a compression tester that will also tell you if it is working. I am assuming that you have exhaust lash set correctly. There have been multiple threads here on this very subject and in all of them the OP was not adjusting the lash on the base circle of the cam instead adjusting lash on the CR lobe. In your case it maybe the CR is broken. Let us know if you have any of the above three items and we can debug from there.